| Basic Information | ||
| Noise/Signal | 82 DB | |
| Microphone Type | 2.4GHz | |
| BASIC INFORMATION | ||
| Battery | Built-in Li-ion Battery or USB< DC 5V Approx. 6 hours |
|
| Main Spec | ||
| Frequency Range | 50Hz-8.5KHz | |
| Sensitivity | Built-in Microphone: -39dB±2dB (0dB=1V/Pa@lkHz) |
|
| Polar pattern | Omnidirectional | |
| Using the Microphone | ||
| Audio recorders | Yes | |
| PC | Yes | |
| WARRANTY INFORMATION | ||
| Warranty | 1 year | |
BOYA BY-WM4 is a 2.4GHz wireless microphone system consisting of a belt-pack dual-channel receiver and two belt-pack transmitters, which are compatible with smartphone, DSLR, consumer camcorders, PCs, etc. Dual-channel Receiver Delivers Two Sound Sources Simultaneously Equipped with a dual-channel wireless belt-pack receiver, BY-WM4 wireless microphone system is able to captures two sound sources and delivers both of them to your recording devices simultaneously.

Both transmitter and receiver are company and light, each one only about 47g (1.7oz), the BY-WM4 Pro K2 works about 6 hours and operation distance is up to 60m (197ft) without obstacles.
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