BOYA BY-WM8 Pro-K2 UHF Dual-Channel Wireless Microphone System Receiver+Transmitter A+Transmitter B with LCD Display Screen for Canon Nikon Sony DSLR Camera Camcorder

The BOYA BY-WM8 Pro-K2 is an upgrated UHF Dual-Channel Wireless Microphone System for capturing audio with dual subjects, features 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 news gathering (ENG), electronic field productions (EFP), film production, business and educational applications, and more.
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 inch to XLR output cable, a single 1/8 to 1/8 inch 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.

Features:
Ideal for interview, ENG/EFP, film production.
Compander for high quality and clear sound.
Includes one dual-Channel wireless receiver and two transmitters. Up to 48 selectable UHF channels. Up to 32 MHz of transmission bandwidth.
Selectable stereo and mono mode. Plug and record functionality.
Easy and flexible wireless synchronization between transmitter and receiver via infrared.
User-friendly menu operation.
Selectable Mute function. Easy-to-read LCD displays.
Wide range of accessories adapts the system to most of requirements
Locked-plug avoids accidental changing of settings
Transmission range is up to 100 meters. Power supply by Two (* 3) AA batteries. More than 6 hours continuous operation.

Specifications:
Brand: BOYA
Model: BY-WM8 Pro-K2
--System:
Oscillator Type: PLL Synthesized Control Oscillator
Carrier Frequency Range: 576.4 MHz-599.9 MHz (Transmitter: A), 568.6 MHz-592.1 MHz (Transmitter: B)
Channels: 48
Frequency Response: 40Hz to 18kHz (±3dB)
Operation Range: 100m/300ft (without obstacle)
Operating Temperature: 14℉ to 122℉ (-10℃  to +50℃)
Storage Temperature: 14℉ to 131℉ (-10℃  to +55℃)
--Transmitter:
RF Output Power: ≤10 mW
Antenna: 1/4 Lambda wire antenna
Spurious Emission: 250 nW or less
Audio Input Connector: 3.5mm mini jack
Reference Audio Input Level: -60dBV (MIC input, 0dB attenuation)
Reference Deviation: ±5 kHz (–60 dBV, 1 kHz input)
Input Frequency Range: 20Hz-20kHz
Distortion: 0.5% or less
Power Supply: Two AA size batteries
Operation Time: About 6 hours
Dimensions: 20.8 * 6.7 * 2.9cm (H * W * L)
Weight: 80g (without batteries)
--Receiver:
Antenna: 1/4 Lambda wire antenna
Audio Input Connector: 3.5mm mini jack
Signal-to-noise Ratio: 70 dB or more
Distortion: 0.5% or less
Headphone Output Level: 30mW (16 Ohm)
Audio Output Level: -60dBV
Power Supply: Two AA size batteries
Operation Time: About 4 hours
Dimensions: 20.8 * 6.7 * 2.9cm (H * W * L)
Weight: 90g (without batteries)
--Lavalier Microphone:
Transducer: Back electret condenser
Polar Pattern: Omni-directional
Frequency Range: 35Hz~18kHz
Signal / Noise: 74dB SPL
Sensitivity: -30dB±3dB / 0dB=1V/Pa, 1 kHz
Connector: 3.5mm locking mini plug
Length: 1.2m / 4ft
Package Size: 28.4 * 23.9 * 5.6cm / 11.2 * 9.4 * 2.2inch
Package Weight: 928g / 32.7oz

Package List:
1 * Receiver
1 * Transmitter A
1 * Transmitter B
1 * XLR Output Cable
1 * Stereo 3.5mm Mini Plug Cable
2 * Omni-directional Lavalier Microphone
2 * Microphone Holder Clip
2 * Wind Screen
3 * Belt Clip
1 * Shoe Mount Adapter
1 * Carrying Case
1 * User Manual (English)

Note:
Batteries are not included.