Wireless Microphone Headset System: Adopt advanced 2.4G wireless transmission technology. 160-210 ft (60M) stable wireless connection at open areas. Suitable for teaching, stage performers, Meeting etc wireless mic,make you more freedom to move around and demonstrate highlights or important facts, perfect for Fitness Instructor,Teacher, dancing instructor. Easy to use--Please turn on the transmitter and receiver power switches, the blue light will flash for approximately 2s, indicator light stops flashing after a successful match, and then you can use it,no further action. Wide Compatibility-- wireless microphone can be used with voice amplifier/large power speakers/portable pa system/mixer microphone speaker system. Rechargeable Wireless Microphone--The cable can charge both the wireless transmitter & receiver at the meantime Color: Black Material: plastic Package Contents: 1 x transmitter 1 x head-mounted bracket 1 x receiver 1 x charging cable