Plug and Play: Simple operation, one second connection after power on, automatic pairing, plug and play, avoid complicated operation, transmission distance is about 8 meters. Clear sound quality: cardioid pointing microphone core, reduce ambient sound, clear sound reception, suitable for online celebrity store visits, personal live broadcasts, passers-by interviews, etc. Good applicability: Supports single and double interviews, one to one is a receiver and a microphone. One to two is a receiver and two microphones, interview programs, two people can speak at the same time. Recording & Charging: The receiver has a built-in charging port, which supports charging while using. You don't have to worry about running out of power during recording. The microphone can standby for 48 hours when fully . Good compatibility: Supports for Android system and for IOS system. Some Android phones need to turn on the OTG function in the settings and download software to use. Most new Android phones are plug-and-play. Name: Wireless Interview Microphone Kit Model: W100 Frequency Response: 2.4KHZ Signal-to-Noise Ratio: 64dB Working Time: 48 Hours Battery Capacity: 400mAh Charging Time: 7 Hours Transmission Distance: About 8 Meters Applicable to: Android, , Camera Sponge Cover Size: 12.7 x 5cm Size: 33 x 2.2cm Colour:black Material:plastic Package Contents: 1 * Microphone 1 * Sponge Cover 1 * Receiver 2 * Data Cables 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.