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 Doesnandx27 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,etcspecification:frequency: 2.4ghzinput Voltage: Dc4.8-5.4vcharging Port :for Lightning or for Type-cbattery Capacity: 80mahtransmission Distance: 8 M Barrier, 20 M Barrier Freemicrophone Size: 62x23 x 28mmmicrophone Weight: 7greceiver Size: 45x27 x 7mmreceiver Weight: 4gpackage Included:1 X Rechargeable Wireless Microphone1 X Receiver1 X English Manual1 X Usb Cable