BOYA BY-WM4 PRO K2 Dual-Channel Digital Wireless Microphone System for DSLRs and Smartphones, Includes 2x Transmitter, 1x Receiver & Lavalier Mic

Designed for videographers on a limited budget and video hobbyists, BY-WM4 PRO is a new generation 2.4 GHz wireless microphone, with dual-Channel for receiver, easy-to-use and compact design, it's ideal for interviews, run-and-gun video shoots, vlog production and more.

Wide Compatibility
With both TRS cable and TRRS output cable included, it can be used for Smartphones, Tablets, DSLR camera, camcorder, audio recorder computer and more.

Excellent for performance
With the transmitter and receiver each weighing only 47g (1.7 oz) and measuring 45 x 70 x 35mm (1.8 x 2.8 x 1.4"), the system still maintains the high signal-to-noise ratio above 84dB and low distortion rate below 0.05%.

High-quality transmission
The system works at distances of Up to 60m (197') operation range (line of sight), operating on the 2.4 GHz frequency band, offering flexibility and giving you a low-latency audio transmission with no video sync issues.

Specifications:

RF Modulation: GFSK (Gauss Frequency Shift Keying)

Frequency band: 2.4G (2405-2478MHz)

Frequency response: 35Hz-14KHz±3dB

Signal/Noise: 84dB or more

Distortion: 0.05% or less (32ohm, 1 KHz, 65 mW output)

FR output level: 3mW

Earphone output level: 32hom, 65mW

Reception sensitivity: -90dB+/- 3dB / 0dB=1V/Pa, 1KHz

Audio input connector: 3.5mm mini jack

Operation range: 50m (164 ft)(without obstacle)

Power requirement: 2 * AAA battery(not included)

Consumption power: Transmitter: 3V/70mA

Receiver: 3V/70mA

Transmitter & Receiver Size: 4.5 * 7 * 3.5cm/ 1.8 * 2.8 * 1.4in

Transmitter & Receiver Weight: 47g/ 1.7oz(without battery)

Package List:

2 * Transmitter

1 * Receiver

2 * Lapel Microphone

1 * 3.5mm to TRS Audio Output Cable

1 * 3.5mm to TRRS Audio Output Cable

1 * Cold Shoe Mount

1 * Hard Case



Specifications
RF Modulation: GFSK (Gauss frequency Shift Keying)
Frequency band: 2.4GHz (2405-2478MHz)
Frequency response: 35Hz-14KHz±3dB
Signal/Noise: 84dB or more
Distortion: 0.05% or less (32Ω,1 KHz,65mW output)
RF output level: 3mW
Earphone output level: 32Ω,65mW
Reception sensitivity: -90dB +/- 3dB / 0dB=1V/Pa, 1kHz
Audio input connector: 3.5mm mini jack
Operation range: 60m (197ft) (without obstacle)
Power requirements: 3V DC (Two AAA size batteries)
Consumption power: Transmitter: 3V/70mA
Receiver：3V/70mA
Dimensions: Receiver: 45x70x35mm (1.8*2.8*1.4 inches)
Transmitter: 45x70x35mm (1.8*2.8*1.4 inches)
Weight: Receiver: 47g (1.7 oz)
Transmitter: 47g (1.7 oz)