The BOYA BY-WM3U is a 2.4GHz wireless microphone system, which is of innovative design with the 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 every time charging maximum support the transmitter/receiver to continue working about 4.5 hours / 8hours.
With its tiny size, but powerful functions, BY-WM3U is ideal for daily vlogging,
live streaming and interview, greatly improve sound recording quality on smartphones, PC or DSLRs.