2022 New model Wireless Lavalier Microphone System with Charging Box Video Wireless Lavalier Microphone Meeting Recording Mic for Phone with 1 Receiver & 2 Microphones 20M Transmission Range Built-in Battery

Name: Wireless radio microphone. Color: black. Material: ABS. Transmission protocol: BT5.0. Transmission distance: 20m. Sound delay: 20ms. Frequency response: 20Hz-20KHz. Microphone sensitivity: 38dB ± 3dB. Sampling rate: 48KHz. Signal to noise ratio: 75dB. Working current: 12mA. Shutdown current: 45uA. Charging chamber battery: 300mah. Microphone battery: 80 mah. Endurance: 30H. Product features: Plug and play, automatically connect and pair. Two microphones actively reduce noise. One microphone is used for voice of mobile phone, and the other one is used for collecting background noise at mobile phone terminal to automatically eliminate ambient noise. Compatible with mainstream devices and major APP software on the market. Double diaphragm 360 ° surround radio, high sensitivity microphone, no dead angle radio. Get rid of bondage and support up to 20 meters of accessible radio. Equipped with portable charging compartment, the battery life can reach 30H. Packing list: 1 or 2 microphone