1. 9 ms ultra-low latency,20 m barrier-free reception,it can use outdoor live 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 shooting,meet your needs for a day. 4. 360 full pointing pick up,record every detail of the sound. 5. Small and convenient,it compatible with various devices,support mobile phone, tablet, camera, notebook,etc Specification: Frequency: 2.4GHz