3 in 1 Mini Microphone Wireless Lavalier Microphones with Speaker 2.4G Cordless Mics with Noise Reduction-Professional Video Recording Lav Mic

Frequency response: 100Hz~15kHz. Sensitivity: 41dB1dB 0dB=1V/Pa). Charging voltage: DC5V500mA+. Working time: 6~8 hours. Charging time: 2~3 hours. Wireless distance: 50m. Latest Upgraded Wireless Microphone Headset System: Adopt advanced UHF wireless transmission technology. 160 ft 50M stable wireless connection at open areas. Suitable for teaching, stage performers, Meeting etc. Headset and Handheld 2 In 1-microphones-it can also be used as handheld mic, wireless 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-UHF wireless microphone can be used with voice amplifier/large power speakers/portable pa system/mixer/karaoke microphone speaker system. We also