Specification: Features:_x000D__x000D_Multi-stage high performance acoustic filter with excellent anti-interference ability. _x000D_This family of products is equipped with a perfect sound filter at both the high level and the first IF amplifier stage. At the second intermediate frequency amplifier stage, a ceramic filter with good consistency is used, and by obtaining a fine frequency, a high anti-interference ability is greatly mentioned. _x000D_Professional audio output: All use XLR independent balanced output and 6.3 unbalanced mixed output coexistence, adapt to the connection of various equipment occasions, avoid confusion and embarrassment caused by device connection mismatch. _x000D_Automatic mute and engine balance elimination circuit, eliminate off balance machine and other engine noise. _x000D_Series of products all have automaticmute and balance elimination circuit, clear the switch machine scale, avoid weighing noise and scene noise even damage the audio amplifying equipment and speakers. _x000D_Using highly reliable surface mounting technology (SMT) production, this series of products all use high stability, high reliability surface mount components. _x000D_The process of detecting and eliminating early failures of components significantly improves product stability, reliability and service life compared to straight-through components. _x000D__x000D_Specification:_x000D_Material: ABS_x000D_Size: Approx. 42x20x4.2cm/16.54x7.87x1.65inch_x000D_Standard: US, UK, EU(optional)_x000D_Model: X-8208_x000D_Battery: 2xAA (not included)_x000D_Comprehensive Parameter:_x000D_Operating Frequency: VHF 200MH-270MHz_x000D_Modulation Method: FM_x000D_Channel Spacing: 500KHz_x000D_Frequency Stability: 0.001%_x000D_Frequency Dynamic Range: 100B._x000D_Maximum Frequency Offset: 25KHz_x000D_Frequency Response: 40Hz-20KHz_x000D_Integrated SNR: >105dB_x000D_Comprehensive Distortion: 0.5%/1KHz_x000D_Working Distance: Approx. 100m/328.08ft(in open space without interference)_x000D_Working Environment Temperature: -100-50_x000D_Receiver Parameters:_x000D_Oscillation Mode: Quartz crystal oscillation_x000D_Frequency Range: VHF 200MHz-270MHz_x000D_Frequency Stability: 0.001%_x000D_Modulation Method: FM_x000D_SNR: >105dB_x000D_Proximity interference ratio: 80dB_x000D_Distortion: 0.5%/1KHz_x000D_Sensitivity: 10dBuV S/N=12dB_x000D_Power Supply: DC: 12V-17V_x000D_Audio Output: Independent 0-400mV, mixed 0-300mV_x000D_Power: 2 channels 1W, 4 channels 4W, 8 channels 4W_x000D_Transmitter Parameter:_x000D_Power Supply: DC 2x1.5AA/DC9V_x000D_Microphone Power Consumption: 100mA/30mA_x000D_Carrier Frequency: VHF 200MHz-270MHz_x000D_Maximum Frequency Offset: 25KHz_x000D_SNR: 105dB_x000D_Dynamic Range: 100dB_x000D_Type: Moving coil / capacitive_x000D_Polar Mode: Heart type / single point_x000D_Frequency Response: 40Hz-20KHz_x000D_Microphone Sensitivity: -473dB/1KHz_x000D_Power: 30mW_x000D__x000D_Package List:_x000D_1 x Transmitter_x000D_8 x Receiver_x000D_1 x Instructions_x000D_1 x Audio Cable_x000D_1 x Power Adapter_x000D_8 x Microphone_x000D_2 x Holder_x000D_4 x Antenna Features: 1Multi-stage high performance acoustic filter with excellent anti-interference ability. 2This family of products is equipped with a perfect sound filter at both the high level and the first IF amplifier stage. At the second intermediate frequency amplifier stage, a ceramic filter with good consistency is used, and by obtaining a fine frequen 3Professional audio output: All use XLR independent balanced output and 6.3 unbalanced mixed output coexistence, adapt to the connection of various equipment occasions, avoid confusion and embarrassment caused by device connection mismatch. 4Automatic mute and engine balance elimination circuit, eliminate off balance machine and other engine noise. 5Series of products all have automaticmute and balance elimination circuit, clear the switch machine scale, avoid weighing noise and scene noise even damage the audio amplifying equipment and speakers. PackageList: