Ziqqucu | ZK-MT21S 2.1 Channel Bluetooth 5.1 Audio Amplifier Board TPA3116D2 50W×2+100W Subwoofer Amp Module DC12-24V

Features:1: Encoder high-end experience2: Intelligent and free to cut songs3: One turn on/off, no need to long press and wait to see the indicator light4: AUX+Bluetooth+U disk+USB sound card5: Bluetooth version 5.1Specification:Product name :2.1 channel bluetooth audio power amplifier board moduleProduct Model: ZK-MT21SNumber of channels: 2.1 channels (left channel + right channel + subwoofer)Input method: AUX+Bluetooth+U disk+USB sound cardBluetooth version: 5.1Switch mode: Mechanical switch (no need to wait for a long press)Adapter power supply: DC 12~24 V, ≥8AAdapted speakers: Left and right channels 20-50W, 4-8Ω subwoofer 20-100W, 4-8ΩOutput power: Left and right channels≤50W, subwoofer≤100wProtection mechanism: Input anti-reverse connection, overheating, overcurrent, short circuit protectionProduct size: 939622mmProduct weight: Net weight 136g including packaging 187gTip: Only when the audio signal input is large enough and the power supply voltage/current is large enough will there be enoughOutput Power!The higher the power supply voltage, the greater the output power, and the smaller the speaker impedance, the greater the output power! Please ensure that the power of the adapted power supply is greater than the actual working power of the power amplifier!Package List：1*2.1 channel bluetooth audio power amplifier board module