BOYA BY-WM5 wireless microphone is for use with DSLR cameras, camcorders. The 2.4 GHz GFSK system result in strong anti-interference, good security and stability.
Two-way communication, but only sound from transmitter can be recorded. The operation range is 50m without obstacle, 360 degree all-round revolveis workable, the maximum distance can reach up to 80m. You can adjust the volume through VOL+ and VOL- volume control. The lapel clip makes it easy to carry.
Frequency band : 2.4GHz (2405-2478MHz)
Frequency response : 35Hz-18KHz +/-3dB
Signal/Noise : 76dB or more
Distortion : 0.1% or less (32Ω,1KHz output)
RF output level : 5 mW
Earphone output level : 32Ω,65mW
Reception sensitivity : -85dB +/-3dB / 0dB=1V/Pa,1kHz
Power requirements : 3.0V DC (Two LR03/AAA size batteries)