BOYA BY-WM3D 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-WM3D 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-WM3D is ideal for daily vlogging, live streaming and interview, greatly imporve sound recording quality on the iPhone,iPad, iPod, PC, DSLRs and camcorders etc.