Bnk 4in1 Wireless Microphones

Power indicator:- the indicator light will turn on when connected to the power supply and it will be darken when turn on the power switch. Power switch :- to open the power supply RF Signal indicator:- to indicate signal received from transmitter AF Signal Indicator Sound Effects Digital Display Sound Effects Select Key:- 8 different kinds of audio effects for choose Volume Control Knob LCD Display. Brand :- BNK