Boya BY-WM8 Pro-K2 UHF Dual-Channel Wireless Microphone System


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The Boya BY-WM8 Pro-K2 is an upgraded UHF Dual-Channel Wireless Microphone System for capturing audio with multiple subjects. Featuring an easy-to-read LCD display, a wide switching RF bandwidth, PLL-synthesized tuning and digital companding circuitry.
The package is suitable for a wide range of wireless applications such as interviews, electronic newsgathering (ENG), electronic field productions (EFP), film production, business, church, and educational applications.
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SKU: BY-WM8 PRO-K2 Categories: , , , , Tag: Brand:

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The BY-WM8 Pro-K2 system consists of two bodypack transmitters, a camera-mount receiver, and two omnidirectional lavalier microphones. Also included with this system is a shoe-mount adapter, a single 1/8″ to XLR output cable, a single 1/8 to 1/8″ output cable & carrying case.
The receiver is built with mic and headphone output jacks. The bodypack transmitter includes a MIC jack and LINE IN jack.

Product Highlights
Dual-Channel Wireless Receiver
48 Selectable UHF Channels
Broadcast-Quality Sound
Includes Two Transmitters and One Receiver
Selectable Stereo and Mono Mode
Mic and Line-in
Selectable Mute function
Easy-to-read LCD displays
Automatic LCD-locked Function
Monitoring sound by headphone output (Receiver)
More than 6 Hours Continuous Operation
Operation range can reach up to 100m
Two AA batteries for both transmitter and receiver


Oscillator Type PLL Synthesized Control Oscillator
Carrier Frequency Range 576.4 to 599.9 MHz (Transmitter: A)
568.6 to 592.1 MHz (Transmitter: B)
Channels 48
Frequency Response 40 Hz to 18 kHz (±3 dB)
Operation Range 300′ / 100 m (without Obstacle)
Operating Temperature 14 to 122°F / -10 to 50°C
Storage Temperature 14 to 131°F / -10 to 55°C
RF Output Power ≤ 10 mW
Antenna 1/4 Wire Antenna
Spurious Emission 250 nW or Less
Audio Input Connectors 1/8″ / 3.5 mm Mic Input
1/8″ / 3.5 mm Line-Level Input
Reference Input Level -60 dBV (Mic Input, 0 dB Attenuation)
Reference Deviation ±5 kHz (-60 dBV, 1 kHz Input)
Input Frequency Range 20 Hz to 20 kHz
Distortion 0.5% or Less
Power Supply 2 x AA Size Batteries
Operation Time Aprox 6 Hours
Dimensions (H x W x L) 8.2 x 2.6 x 1.1″ / 20.8 x 6.7 x 2.9 cm
Weight 2.8 oz / 80.0 g (without Batteries)
Antenna 1/4 Wire Antenna
Audio Output Connectors 1/8″ / 3.5 mm Line Out
1/8″ / 3.5 mm Headphones Out
Signal to Noise Ratio 70 dB or More
Distortion 0.5% or Less
Headphone Output Level 30 mW (16 Ohms)
Audio Output Level -60 dBV
Power Supply 2 x AA Size Batteries
Operation Time About 4 Hours
Dimensions (H x W x L) 8.2 x 2.6 x 1.1″ / 20.8 x 6.7 x 2.9 cm
Weight 3.2 oz / 90.0 g (without Batteries)
Lavalier Microphone Specs
Transducer Back Electret Condenser
Polar Pattern Omnidirectional
Frequency Range 35 Hz to 18 kHz
Signal / Noise 74 dB SPL
Sensitivity -30 dB ±3 dB / 0 dB=1 V/Pa, 1 kHz
Connector 1/8″ / 3.5 mm Locking Mini Plug
Cable Length 4.0′ / 1.2 m
Dimensions Not Specified by Manufacturer
Weight Not Specified by Manufacturer
Packaging Info
Package Weight 2.1 lb
Box Dimensions (LxWxH) 11.15 x 10.45 x 2.25″