Product Feature: Ultra-low latency,40 m barrier-free reception,it can use outdoor live broadcast and take a small video. It doesn't need APP,plug-and-play,one-click connection,easy to wear. 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. Omnidirectional pointing pick up,record every detail of the sound. Small and convenient,it compatible with various devices,support mobile phone, tablet, camera, notebook,etc. Product Description: Frequency range: 2.4GHz Recharging current: 65mA Battery capacity: 110mAh Battery life: 9 hours Charging time: about 2 hours Transmission delay: 18MS-22MS Frequency response range: 20Hz20KHz Signal-to-noise ratio: 70dB Transmission distance: 40M Material: ABS + PC + LCD / ABS + PC Note: Compatible with all iphone/ipad models and all Android systems (Samsung series mobile phone models do not support original camera recording, and need to be recorded through the APP camera). Microphone is suitable for broadcast video, recording, conference, YouTube, Facebook Live, Vlog, Tik tok, Twitc, etc. If your phone is an Android system, before using the microphone, please remember to turn on the OTG switch in the phone system settings, and then use the microphone. (USB OTG Checker is a reliable app for this. Download and run it, and you'll know if your phone supports USB OTG) All product outward appearance, the size color take the material object as, the picture only supply the reference. We provide you with the best product and service. If you have any problem, please let us know, and we will solve the problem ASAP.