Item Type: Wireless Lavalier Microphone Material: ABS Model: EP B3602 BT Version: V5.0 Working Hours: >6H Working Distance: Approx. 10-20m/32.8-65.6ft Microphone Interface: Type C Charging, 3.5mm/0.1in Sound Sensitivity: -38dB Microphone Type: Omnidirectional Capacitive Microphone Frequency Range: 20Hz-16KHz Battery Type: 110mAh Li Ion Battery (Built in) 1、[Multiple Modes] Smart wireless lavalier microphone, supports four modes: normal mode, monitor mode, noise reduction mode, mute mode, plug and play, stable signal, convenient to use.  2、[Clear Recording] Lavalier microphone adopts high efficiency acoustic processing chip, which can output stable sound faster, effectively filter noise, and clearly record ambient music and vocals.  3、[Anti Interference] Lapel microphone has a built in high sensitivity chip, high efficiency real time detection, enhanced anti interference ability, stable signal reception, and convenient for shooting.  4、[360 Degree Sound Pickup] Clip on microphone with 360 degree omnidirectional high density sponge windscreen, no dead corners pickup, quick response, delicate sound, and reduced interference.  5、[Small And Portable] Wireless lapel mic, single transmitter or receiver, portable. Suitable for outdoor live broadcast, online celebrity live broadcast, interview, video recording, online course teaching, etc.