Fuhjythy TPA3116D2 100W Bluetooth Audio Amplifier Board Mono with Boost Hi-Bass Adjustment DIY Speaker Amplifier Board

2. Support APP, modify Bluetooth name, password setting, prompt sound volume adjustment, on/off prompt sound, sleep music, firmware upgrade, etc. 4. Protection mechanism: input anti-reverse connection, over-temperature, over-current, short circuit, anti-static protection 3. Pairing function, true wireless function allows two sets of speakers to be combined into left and right channel pairing, with a stronger sense of spatial positioning 1. This product is very suitable for DIY simple mono amplifier, with built-in boost circuit, very suitable for upgrading or making battery-powered outdoor speakers, pull-rod speakers, and mobile speakers 5. APP has a timer shutdown function