BOYA BY-WM8 Pro K3 UHF Dual Channel Condenser Wireless Microphone Interview Live Streaming Mic •With dual channel wireless receiver •48 UHF channels •Selectable stereo and mono modes •Can be used as a microphone and audio transmission tool •Optional mute function •Simple and easy to read menu •Automatic key lock function •Output sound through headphone monitoring (receiver) •Continuous operation for more than 6 hours •Operating range up to 100 meters (up to 300 meters without obstacles) •Microphone and receiver powered by two AA batteries •Specification: •Receiver: •Audio output interface: standard 3.5mm interface,XLR audio output •Signal to noise ratio: 80db •Distortion: 0.5% or less •Headphone output level: 30mW,32 ohms/1KHz •Audio output level: -60dBV •Power supply: 2 x AA batteries,about 6 hours of use time (not included) •Dimensions: 20.8 x 6.7 x 2.9cm •Weight: 95g •Microphone: •RF output power: ≤10 mW •Spurious emissions: 250nW or less •Audio input interface: 3.5mm interface •Reference audio input level: -60dBV (MIC input,0dB attenuation) •Reference deviation: ±5 kHz (-60dBV,1kHz input) •Input frequency range: 20Hz-20KHz •Distortion: 0.5% or less •Power supply: 2 x AA batteries (not included) or Micro USB interface (DC 5V) •Size: 5.3x5.3x25.6cm •Weight: 252g Package included: •1 x Microphone •1 x Carrying Bag •1 x English User Manual •1 x Receiver •1 x Metal Clip •1 x 3.5mm Output Cable •1 x XLR Output Cable •1 x Hot Shoe Adapter