Portable Size:Less than the size of a finger, compact and lightweight design, easy to carry, wireless connection, not limited by cable length, the maximum connection range can reach up to 60 ft , Can be easily clipped to the collar, lanyard or put in the pocket Real-time Crystal Voice Syncs:Using real-time auto-sync technology, which extremely reduce the video post-editing. 48kHz stereo CD quality, support Multi-Channel Real-Time Mixing, it can synchronize the background music for phone and human voice in real time. PLUG & PLAY:APP and Bluetooth are not required.The item includes microphone and receiver.Just plug the receiver into the devices and they will auto pair.Then you can use it directly. SUPERIOR BATTERY LIFE : The wireless microphone transmitter has a built-in rechargeable battery, the charging time is about 2 hours, and the working time can be up to 5-7hours after being fully charged. Compatible with Type C Port Devices:The Euterpy mini lapel mic can work with type-C port. Also compatible with Andriod smartphones or tablets with USB C, Type-C interfaces.