Note: 1. Please tear off the insulating paper at the bottom of the microphone when charging_x000D_2. If the microphone is not recognized, please upgrade your phone for IOS version Specification: Item Type: Wireless Lavalier Microphone_x000D_Material: ABS_x000D_Microphone Battery Type: 2 x Built In 80mAh Lithium Ion Batteries (Included)_x000D_Charging Compartment Battery Type: Built In 400mAh Lithium Ion Battery (Included)_x000D_Frequency Range: 2.4GHz_x000D_Frequency Range: 20-20KHz_x000D_Transmission Delay: 9ms_x000D_Signal To Noise Ratio: 64dB_x000D_Operating Time: About 7H_x000D_Charging Time: About 50min_x000D_Microphone: Digital Microphone Features: 12.4G SIGNAL TRANSMISSION: Real time automatic synchronization technology with ultra low latency 2.4G signal transmission. Let you complete dynamic shooting, cell phone recording and short video production in a variety of large scenes. 280MAH RECHARGEABLE BATTERY: Wireless clip on microphone has a built in 80mAh rechargeable battery that can work continuously without power for about 7 hours. Receiver is powered by your device (can be charged at the same time). 3CLEAR AND STABLE: Wireless lavalier lapel microphone covers 70ft of signal, helping you get rid of cluttered wires and record or shoot video clearly indoors or outdoors at greater distances. 4NOISE CANCELLATION: Lavalier mic features vocal curve correction to accurately pick up sound no matter which direction it's coming from. Professional noise reduction technology to isolate noise interference while recording. 5EASY TO USE: Simply plug the receiver into your device and turn on the portable microphone for automatic pairing. When the microphone's blue light stays on, it means the microphone is working properly. 6APPLICABLE RANGE: Wireless lavalier microphone works with for iPhone 7 and higher, for IOS smartphones. Suitable for interviews, webinars, podcasts, microblogs, live streaming. Free up your hands and record from a distance. PackageList: 2 x_x000D__x000D_WirelessLavalierMicrophone 1 x Receiver 1 x Charging Storage Box 1 x Charging Cable 1 x Instruction Manual