Specification: Origin: Mainland China Type: Voltage Regulator Condition: New Application: Speaker Supply Voltage: 5 V Model Number: Stereo Audio Receiver Module Digital Power Amplifier Board Mini Bluetooth-compatible Audio Digital Power Amplifier Board USB Power Supply Bluetooth-compatible Receiver Digital Power Amplifier Product parameters: Audio input method: Bluetooth-compatible audio receiving Power amplifier output power: 2X3w (the output is connected to the speaker or speaker, and cannot be output to the power amplifier) Drive speaker impedance: 4~8 ohms Power supply interface: Mirco USB seat (the charging cable can be connected to the computer USB charging treasure USB can supply 5V) Output interface: 2.54 pitch 4-pin seat Product size: 43*25*8mm Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring deviation due to manual measurement. Included: 1Pc *Stereo Audio Receiver Module 1.Bluetooth-Compatible Audio Receiver: This digital amplifier board features a Bluetooth-compatible audio receiver, allowing for easy and convenient wireless audio streaming from any compatible device. 2.High-Quality Sound: With a maximum output power of 2x3W, this amplifier board delivers high-quality sound with clear and crisp audio, perfect for small audio projects. 3.USB-Powered: This amplifier board can be powered through USB, providing greater flexibility and convenience in its use cases. 4.Compact Design: Measuring just 43x25x8mm, this miniature amplifier board is compact and easy to install, making it ideal for small audio projects that require high-quality sound. 5.Easy-to-use Interface: This amplifier board features easy-to-use pin settings and clear labeling, allowing for hassle-free installation and configuration.