Wireless Microphone Digital Mini Portable Mic For Mobile Phone BY-MW3

Charging time - About 90 min
Transfer distance - The barrier-free distance is more than 20 meters Human obstacle distanceísabout7meters
Signal-to-noise ratio - 64 dBm
Charging input voltage - DC4.8-5.4v
Charging port  - TYPE-C/custom
Sensitivity (microphone)  - -42dB
Frequency response range   -  20-20KHZ
Antenna type  -  Ceramic antenna
Working time about  -  6h
OEM/ODM  - Support custom

• Easy Plug & Play, no APP is needed: The upgraded wireless lavalier microphone is more professional, No Adapter/Addtional APP/ Bluetooth Needed, Just Plug The Receiver into Your iOS Devices and Power on the Micphone Then Start Recording (Auto-Connected & Sync)
• Long-distance transmission and long working hours: The lapel microphone built-in rechargeable batteries up to 8 hours Operation Time when it is fully charged.