{"product_id":"ys-as21-2-220w-350w-2-1-channel-bt-digital-power-amplifier-board-tpa3251-amp-subwoofer-treble-bass-tone-audio-app-usb-function","title":"YS-AS21 2*220W+350W 2.1 Channel BT Digital Power Amplifier Board TPA3251 AMP Subwoofer Treble Bass Tone Audio APP USB Function","description":"\u003cbody\u003e\n\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\n\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eSIENWINY\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCertification\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eCE\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eChoice\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eyes\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eModel Number\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eYS-AS21\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eOrigin\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMainland China\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n \n \n  \u003cp\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eYS Audio APP download link: https:\/\/www.pgyer.com\/f9KC\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eNote!\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eIt needs to be assembled by yourself, and the material package is given a screwdriver.\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eThe suitable power supply of the product is DC power supply, and AC power supply is not allowed!\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eThe color of the product may be slightly different from the picture due to the differences of light, angle and\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eshooting equipment.\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eThe product size is measured manually. Please allow slight deviation in the measurement data and make sure\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eyou don't mind.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eProduct parameters\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eBrand: YS Audio\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eProduct Name: 2.1 channel BT power amplifier\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eProduct Model: YS-AS21\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eAmplify Chip: TPA3251\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eChannels: 2.1 channel (left channel + right channel + subwoofer)\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eAudio Enter: AUX + BT + USB disk + USB Sound Card\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eBT Version: 5.1\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eSwitching Mode: Mechanical switch(without long press and wait)\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eAdaptive Power supply: DC16~38 V ,≥10A\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eAdapter Speaker:\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eL\u0026amp;R channels 30-220W，3-8Ω\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eSubwoofer 30-350W,2-8Ω\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eOutput power:\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eR\u0026amp;L channel≤220W,\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003esubwoofer≤350W\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eProtection Mechanism: Protection against reverse connection, undervoltage, overheating, overcurrent and\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eshort circuit (automatic recovery without restart)\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eVoltage gain: 30dB\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eProduct Size: 141*131*27mm\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eProduct Weight: about 346g\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003ePackage Weight: about 408g\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eTip: when the audio signal input is large enough and the power supply voltage \/ current is large enough, there\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003ewill be enough output power!\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eThe higher the power supply voltage, the greater the output power, the smaller the speaker impedance, and\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003ethe greater the output power!\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003ePlease ensure that the power of the adaptive power supply is greater than the actual working power of the\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003epower amplifier!\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eProduct Introduction\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eThere is a clear distinction between the power input terminal and the speaker wiring terminal to prevent the\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003espeaker from being connected to the power terminal and burning the speaker.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eProduct Features:\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003e1.The product is designed with two Texas Instruments tpa3251 power amplifier chips, with ultra-low distortion\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eand high-definition sound quality.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003e2.Multiple audio inputT modes, BT + TO + USB flash disk + USB Sound card.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003e3.The power input terminal shall be clearly distinguished from the speaker wiring terminal to prevent the\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003espeaker from being connected to the power terminal and burning the speaker.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003e4.Mechanical volume knob, turn the knob to switch the machine on and off, no need to press and wait to see\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003ethe indicator light. True stepless tuning.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003e5.Six low-noise preamplifiers 5532, with large gain and improved sound quality and volume.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003e6.The tin spraying design of wiring opening window and the tin spraying design of wiring opening window on\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003ethe back of bare board increase the output power.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003e7.Support YS Audio APP, APP comes with situational music, support to modify BT name, set BT password,\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eprompt tone, volume adjustment \/ switch prompt tone, Lullaby + timed shutdown, sound effect adjustment,\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003esupport to customize 10 sound effects, which can be adjusted arbitrarily.USB flash disk, music selection,\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eplaylist.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eSimple appearance without exaggeration\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eThe voice of YS Audio brand is born for music fever. It has simple appearance, high-definition sound quality and\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003ehigh fidelity.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eLullaby music allows you to return to nature, help you sleep, decompress and heal your body and mind. Wuzhi\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eAudio APP has the function of regular shutdown.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003e10 natural sounds are Sound bowl, Stream, Wave, Sea wave, Thunderstorm, Bird song, Cry of insects, Frogs,\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eBonfire, Guqin, up to 1023 sound combinations.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003e10 kinds of natural sounds create unique natural sound scenes, create a natural atmosphere, quickly calm your\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003emood and realize deep sleep.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eChange BT name:\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eThe BT name of each product can be changed, and multiple products can be easily identified.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eChange BT password:\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eThe BT connection password can be modified to prevent others from hijacking.\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eThis function can be turned off.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eAdjust the volume of prompt tone:\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eThe volume of prompt tone can be adjusted to meet different needs of customers.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eON \/ OFF prompt tone:\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eThe prompt tone can be turned on or off.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eUSB flash disk playlist function:\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eOpen the playlist of USB flash disk, select music at will, and support shaking to switch songs.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eYS Audio APP has popular, classical, jazz, country, natural, rock and other sound effects. It supports custom 10\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003esegment sound effects and arbitrary adjustment to make up for deficiencies, so that different speakers can\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eachieve better sound effects.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eBT name modification steps:\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003e[enter a new BT name] → [click set button] → [system automatic restart] → [cancel pairing of mobile BT with the original BT name] → [find a new BT name and re pair]\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eBT password setting steps:\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eMethod 1:\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003e[turn on BT password switch]→Use default password 1111\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003eMethod 2:\u003c\/span\u003e\u003cbr\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003e[turn on BT password switch] → [enter password] → [click the setting button] → [the system will restart automatically] → [cancel pairing, and you will be prompted to enter password when connecting again]\u003c\/span\u003e\u003c\/p\u003e\n  \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S90fd22b4239543bc8c4f2f23cb824ac7I.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\n  \u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sb2fda450391b4b5ab4d2940b929f29a8I.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S5a15025558894812baa28ec03c809c8e4.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S9219f558e1c84a32b548d333b41d405dU.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S3d4bfc7e089d4e8190604b74ff1700e5C.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sdf9667a2825d426ab1493cb8d6a1a23dc.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S894398d5c72f4d8daa9db57177d8cd10t.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S7b20d560a93046db951913a3c0fceb58u.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sd8cf4fb40e454f88a7688a60ed978bd0A.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S1e31fd92c74746d5b52bb371e1cb5fcbN.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S6563768a437f4bf892ce2766fe2226c7w.jpg\" slate-data-type=\"image\"\u003e\u003cspan style='background-color:rgb(255, 255, 255);color:rgb(34, 34, 34);font-size:medium;font-family:Inter, \"Open Sans\", sans-serif'\u003e\u003c\/span\u003e\u003c\/p\u003e\n \n\u003c\/div\u003e\u003c\/div\u003e\r\n\u003c\/body\u003e","brand":"HHRummurz.com","offers":[{"title":"YS-AS21","offer_id":43488497303630,"sku":"14:350850#YS-AS21","price":139.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/9066\/7598\/files\/Sd5ebf89f4a974f34931a4695d2d873cdN.webp?v=1772383938","url":"https:\/\/www.hhrumurz.com\/products\/ys-as21-2-220w-350w-2-1-channel-bt-digital-power-amplifier-board-tpa3251-amp-subwoofer-treble-bass-tone-audio-app-usb-function","provider":"HHrumurz.com","version":"1.0","type":"link"}