Power-on delay output protection (need to use the amplifier board comes with the switch), no impact, to protect the expensive speaker unit.
Output power, distortion is small, high degree of sound reduction. No noise, interference current sound.
A variety of audio input, the standard 3.5MM audio cable input socket, or from the 3P socket input audio to meet the different modules connected.
Frequency response: 20Hz-20KHz (± 3dB) / left and right channels
Support to connect MP3 decoding module, comes with power supply output