New Version: No more women voice. We have upgraded the board replacing the women voice with beeps to indicate the connection status.
Parameter: DROK bluetooth audio amplifier board wide input voltage range is DC 4.5V-27V, can be powered by 12v or 24v, output power is 50Wx2, SNR is 102dB. No POP sound when powering this module, skipping song or pausing.
2 Audio Input Ways: user can directly connect this bluetooth speaker board with wireless Bluetooth 3.0/4.0/4.1, or choose the headphone (Line in) way.
2 Powering Methods: the digital amplifier module is equipped with wiring blocks and DC 2.1mm socket which is compatible with most laptop＊s power port.
Protective Function: the BT amp is designed with acrylic protective shell, reverse connection protection, over-voltage protection, under-voltage protection, over-heat protection, short-circuit protection.