Features: 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 Specifications: parameter: Microphone: digital silicon microphone Sensitivity: -26DB Battery capacity: 80MAH Frequency response range: 20-20KHZ Signal to noise ratio: 64DBM Transmission distance: 20 meters Package Included: 1 x Rechargeable Wireless Microphone 1 x Receiver 1 x USB cable Notes: Due to the difference between different monitors, the pictures may not reflect the actual color of the item. Compare the detail sizes with yours, please allow 1-3cm error, due to manual measurement. Please leaving a message before you give the bad feedback, if the products have some problems. Thanks for your understandings.