Tiny & Lightweight Wireless Mic BY-WM3T2 series is impossibly compact and lightweight, and it’s easy to get started as long as you plug the receiver into the device. The combined weight of the TX and RX is no more than 15g, making them very portable. Because of its ultra-compact size and super lightweight, the transmitter won’t tug at your collar when you clip it.Support Live Broadcasting and Phone Charging Simultaneously When the BY-WM3T2 receiver is plugged into a smartphone, the phone can be charged via   Apple iOS devices port on the receiver. It ensures your uninterrupted work for a long time, such as live streaming. Besides, the built-in rechargeable battery of the transmitter provides up to 10 hours of run time, which helps you get a full day of audio recording.