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 third- 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.