1. 9 ultra-low latency,20 m barrier-free reception,it can use outdoor broadcast and take a small video.2. It doesn't need APP,plug-and-play,one-click connection,easy to wear.3. Intelligent noise reduction,long endurance of 10 hours,easy to cope with all kinds of noisy environment,worry-free ,meet your needs for a day.4. 360 full pointing ,record every detail of the sound.5. Small and convenient,it compatible with various devices,support mobile phone, , camera, notebook,etcInput voltage: DC4.8-5.4VCharging port: for interface/for Type-CBattery capacity: 80mAhTransmission Distance: 8 m barrier, 20 m barrier freeMicrophone size: 62 x 23 x 28mmMicrophone weight: 7gReceiver size: 45 x 27 x 7mmReceiver weight: 4gcolor:BlackMaterial:ABSPackage Contents:2 x Rechargeable Wireless Microphone1 x Receiver1 x English Manual1 x USB cableOnly 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.