1x Receiver + 2 x Transmitters: The Upgraded dual wireless lavalier microphones has 1 receiver and 2 transmitters included, which makes it possible to record sound or video from both 2 parties at the same time. Also, you can use just use 1 mic alone for interviewing, online conferencing, podcasting, vlogging, live streaming | Plug and Play: No Bluetooth, No APP, No adapter needed. Just plug the receiver into your devices and turn on the power switch of the transmitters, the two parts will get connected successfully and auto paired immediately. Note: If the matching is unsuccessful, don't worry, just turn off the device and try again | Omnidirectional Mic with Noise Reduction: The built-in intelligent active noise reduction chip allows you to record clearly in noisy environments, which can provides more vivid, soft, natural and stereo sound around for recording or real time video | 65FT Transmission & Rechargeable : This lavaier mic has a stable audio signal, the longest wireless transmission distance can reach 65FT and the high-quality DSP chip can bring more stable transmission. Wireless microphone transmitter has built-in rechargeable battery with working time up to 6 hours | Full Compatibility: Compatible with iOS Devices. The wireless lav mic can work iOS system and can be use with iPhone and iPad. Without usb c type interface connected to your mobile phone, it can not be used with android devices | Note: Not Compatible with iPhone 15 above(USB-C). Please make sure the bluetooth in your cellphone is OFF before starting to make voice or video recordings