Power amplifier board module, 2.1 channel digital power amplifier board module, 220 high and low tone subwoofer power amplifier board

BT 5.1 version, with an effective range of approximately 10 meters, Plug and Play, fast connection
Can be easily connected to your mobile phone, computer, TV, speaker, etc.
Six low-noise preamps enhance sound quality and volume, with high gain and a 30dB gain setting.
Clearly separate the power input terminal from the speaker wiring terminal to prevent accidentally connecting the speaker to the power terminal and damaging it.
Protections: reverse connection protection, undervoltage protection, overheat protection, overcurrent protection, and short-circuit protection (can automatically reset, no need to restart).