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 or important , perfect for Fitness Instructor,Teacher, dancing instructor. Easy to use- Please turn on the transmitter and receiver power switches, the blue light 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 or large power speakers or portable pa system or mixer microphone speaker system. Rechargeable Wireless Microphone- The cable can charge both the wireless transmitter and 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 Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.