BOYA by-WM8 Pro-K1 Wireless Lavalier Microphone, One Transmitter and One Receiver,48 UHF Channels, LCD displays, 6h+ Operation time, Mic and Line-in,Automatic LCD-Locked Function
 
Consists of One Transmitter and One Receiver||：48 UHF channels wireless microphone system includes one transmitter and one camera-mount receiver, digital companding for high-quality and clear sound.
?Operation range can reach up to 100m||：Easy and flexible wireless synchronization between transmitter and receiver via infrared, and operation range can reach up to 100m(300)(without obstacle).
?Dual-Channel Wireless Receiver||：supports stereo and mono mode; easy-to-read LCD displays and automatic LCD-locked function; with selectable mute function; monitoring sound by headphone output(receiver).
?Widely Applications||:such as interviews, electronic news gathering (ENG), electronic field productions (EFP), film production, business and educational applications and more.
?Comes with Wide Range of Accessories ||:include a lavalier microphone, a Body-pack transmitters ,a portable receiver,a stereo 3.5mm cable, a XLR output cable, a shoe mount adapter, etc.
Specification:
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: 40 Hz to 18 kHz (+/-3dB)
Operation range: 100m (300') (without obstacle)
Operating temperature: 14° F to 122° F (-10℃ to +50℃)
Storage temperature: 14° F to 131° F (-10℃ to +55℃)
Transmitter
RF output power: ≤10 mW
Antenna: 1/4λ wire antenna
Spurious emission: 250nW or less
Audio input connector: 3.5mm jack
Reference audio input level: –60 dBV (MIC input, 0 dB 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: 208(H) × 67(W) × 29(L)mm
Weight: 80g without batteries
Receiver
Antenna: 1/4λ wire antenna
Audio output connector: 3.5mm jack
Signal to noise ratio: 70 dB or more
Distortion: 0.5% or less
Headphone output level: 30mW (16 Ω)
Audio output level: –60 dBV
Power supply: Two AA size batteries
Operation time: About 4 hours
Dimensions: 208(H) × 67(W) × 29(L)mm
Weight: 90g without batteries
Lavalier Microphone
Transducer: Back electret Condenser
Polar pattern: Omni-directional
Frequency Range: 35Hz ~ 18 KHz
Signal / Noise: 74dB SPL
Sensitivity: -30dB +/-3dB / 0dB=1V/Pa, 1 kHz
Connector: 3.5mm locking mini plug
Length: 1.2m (4')