V&T K8 Wireless Collar Mic Compatible with iPhone, Android, and Type C Plug and play is simple; no APP is required. The updated wireless lavalier microphone is more professional; all you need to do is plug it into your iOS device and turn it on. No additional APP, adapter, or Bluetooth is required. Next, begin recording (auto-connected & synchronized). Extended working hours and long-distance transmission When fully charged, the integrated rechargeable batteries in the lapel microphone can operate for up to eight hours. and a working distance of 65 feet without a cable. The transmission distance is approximately 40 feet if there are obstructions like walls or excessive noise between the microphone and the receiver. To power the phone, you can connect a type-C cable to the receiver. in the event that the phone goes dead while the broadcast is live.