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1*BOYA BY-WM5 wireless microphone
BY-WM5 lavalier microphone is for use with any DSLR GoPro HERO 3 3+ 4. 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.
1* BOYA BY-GOC Convertor
Cable adapter BY-GOC is designed for GoPro Hero 3/3+/4 mini cameras with 3.5mm jack, provideing excellent audio and recording experience with stereo system.
The BOYA BY-WM5 working with BY-GOC can be used for GoPro action cameras like GoPro 4/3/3+. Providing excellent recording experience for GoPro video. With a simple and lightweight cable BY-GOC, distant recording is no longer a question for GoPro holders. GoPro video can enjoy fabulous recording quality as good as that from DSLR.

1.Suit for DSLR cameras, camcorders, audio recorder and GoPro HERO 3 3+ 4 etc. & portable wireless operation, such as film work, podcasting, performances and other audio or video applications.
2.Adjust the volume through VOL+ and VOL- volume control.
3.The low-cut filter will prevent low end noise and record conversation clearly.
4.The AAA batteries, super long 4 hours of battery life (not included);
9.5 Seconds Speed Channel Set and Easy to Operate;

RF Modulation: GFSK (Gauss frequency Shift Keying)
Frequency band: 2.4GHz (2405-2478MHz)
Frequency response: 35Hz-14KHz±3dB
Signal/Noise: 76dB or more
Distortion: 0.1% or less (32Ω,1KHz,65mW output)
RF output level: 32Ω,65mW
Reception sensitivity: -85dB +/- 3dB/0dB=1V/Pa, 1kHz
Audio input: 3.5mm jack
Power requirements: powered by two AAA batteries
Battery life: 3.5 to 4 hours of runtime
Transmitter Dimensions: 2.36×3.3×1.1″; 4.37 oz
Receiver Dimensions: 2.36×3.3×1.61″; 4.89 oz

1*BY-WM5 microphone system set
1*BY-GOC cable convertorWireless Lavalier microphone system for DSLR camera GoPro Hero 4 3 3+ mini action camera
Excellent sound quality, great portability, easy setup
Compact, high performance, lightweight, two way communication system
The operation range is 50m(164ft) without obstacle, 360 degree all-round revolves workable and the maximum distance can reach up to 80m
Experience more freedom of movement while recording

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