Frequency: 2.4GHz Input voltage: DC4.8-5.4V Charging port :for Lightning/for Type-C Battery capacity: 80mAh Transmission Distance: 10 m barrier, 120 m barrier free Microphone size: 62*23 * 28mm Microphone weight: 7g Receiver size: 45*27 * 7mm Receiver weight: 4g 9 ms -low latency,120 m barrier-free reception,it can use outdoor live broadcast and take a small video. It doesn't need APP,pluging-and-play,-click connection,easy to wear. Intelligent noise reduction,long endurance of 10 s,easy to cope with all kinds of noisy environment,worry-free shooting,meet your needs for a day. 360 full pointing pick up,record every detail of the sound. Small and convenient,it compatible with various devices,support mobile phone, tablet, camera, notebook,etc. Package included: 1 x Rechargeable Microphone 1 x Receiver 1 x English Manual 1 x USB cable The speaker supports U disk and TF card.Dual speaker stereo sound.