Passed CE RHOS FCC UL certification. Built-in smart chip, with over-current protection, over-voltage protection, short-circuit protection, over-heat protection, etc.
Small amplifier with buletooth wall mount player for inwall of size 120 type and supply with back cover box for background music system, output power reach 15W max@8 ohms low impedance output, has a 34x37mm display screen, it is suitable for bedroom speak