HXJ8002 Mini Amplifier Board 3W Solo Channel Audio Power AmplifierBTLbridge connection audio power amplifier chipHXJ8002 amplifier is ideal for situations where a device is unable to drive with sufficient volume or in instances where an audio signal has been split across multiple outputs, such as using a splitter. Description: This HXJ8002 module is ideally suited to adding a bit of amplification to your audio outputs. Connecting your audio inputs and a separate power 2 - 5.5V supply allows you to amplify an audio line in preparation to be connected up to a speaker. This module is ideal for situations where a device is unable to drive with sufficient volume or in instances where an audio signal has been split across multiple outputs, such as using a splitter. Specification: Work Voltage: 2.0-5.5V Max Distortion: 0.5% (input signal 1 kHz/8ohm/1 w) THD + D