BOYA BY-WM3U is a 2.4GHz wireless microphone system, which is of innovative design with buit-in microphone on the transmitter.
The storage box of BOYA BY-WM3U is also where to paring and charging the transmitter and receiver. After the storage box is fully charged, it maximum allow 2 times full charging for the transmitter & receiver, and everytime charging maximum support the transmitter / receiver to conitue working about 4.5 hours / 8hours.

With it's tiny size, but powerful functions, BY-WM3U is ideal for daily vlogging, live streaming and interview.