eMagTech 2 Pcs Stereo Power Amplifier Circuit Board Module 4.2 5W+5W Suitable for Mobile Phones and Adapters

This product is a Stereo Power Amplifier Module, version 4.2, compatible with all mobile phones and various adapters on the market, suitable for DIY speakers, portable speakers, and other applications. Equipped with Bluetooth connection function, in open areas, the transmission distance is about 15m/49.2 feet, supporting automatic connection to paired devices and automatic music playback. Adopting a stereo dual channel design, the left and right channels output 5W each, providing a clear and full sound experience. Two speakers of 2‑8Ω and 3‑10W can be connected respectively, and 4Ω5W and 4Ω10 W speakers are recommended for stereo output. USB-C interface power supply, wide compatibility, suitable for multiple power solutions, more flexible and convenient to use. When installing the circuit board, try not to place the antenna close to metal components to avoid affecting the transmission distance. The overall size of this PCB is 40x20x12mm, and each piece is equipped with 3 cables.The outputs of the two power amplifiers cannot be connected in parallel or the negative poles connected together, otherwise the power amplifier chip will be damaged.