Experience high-quality wireless audio with the MH-M38 Digital Amplifier Board, designed for low-power Bluetooth (BT) 4.2 transmission with two-channel stereo lossless playback. This advanced BT amplifier module offers quick and stable Bluetooth connectivity, allowing seamless wireless transmission up to 20 meters in open environments for enhanced listening freedom. Key Features: · Latest Bluetooth 4.2 Support: Ensures efficient wireless transmission with improved connection stability and audio quality. · Two-Channel Stereo Lossless Playback: Delivers clear and immersive stereo sound output to your speakers. · Wide Bluetooth Range: Achieves a reliable BT connection distance of up to 20 meters in unobstructed conditions for greater flexibility. · USB Sound Card Compatibility: Plug and play functionality via USB connection enables the module to act as a digital sound card, streaming music directly from your computer through the amplifier. · Flexible Power Options: Supports direct power via 5V MICRO USB cable, external 5V power supplies, or a 3.7V lithium battery, providing versatile usage scenarios. · Stereo Audio Output: Outputs left and right channel audio signals compatible with two separate speakers, supporting 2 to 8 ohm impedance and 3 to 5W power. Optimal performance is achieved with 4 ohm 5W speakers. · Easy Speaker Connection: Equipped with clearly labeled outputs (L+ / L- for left channel, R+ / R- for right channel) for straightforward integration with your speaker system. Specifications: · Item Type: Digital Amplifier Board · Power Input: 5V (Positive Pole), GND (Negative Pole) · Battery Input: VBAT for Lithium Battery Anode 3.7-4.2V · Audio Output: Left and Right Channel Stereo Output supporting 2-8Ω, 3-5W speakers (4Ω 5W recommended) Package Includes: · 1 x MH-M38 Digital Amplifier Board The MH-M38 amplifier board is an excellent choice for DIY audio projects or upgrading existing sound systems. Its combination of advanced Bluetooth 4.2 technology, multiple power supply options, and high-fidelity stereo output makes it a versatile and reliable digital amplifier solution for delivering rich wireless audio performance.