Features: Using traditional FM modulation technology for superior RF performance and audio performanceSmall transmission delay and long transmission distanceFully integrated chip solution, stable product performance4 x 60 adjustable frequency pointsEnhanced wireless receptionBeautiful LCD displayWith automatic search for clean channelsWith 4 hand-held transmitters and 4 headset microphonesVolume adjustment
Specifications: System
parametersFrequency range: 610~690MHzTransmit
power: lt
; 10000KWDynamic range: gt
; 100dBComprehensive distortion: lt
; 0.5 %Frequency response: 30 ~ 18
KHzReceive sensitivity: lt; -108dBm@12dB
SINAD Transmitter(hand-held)Transmit power: lt
; 30mwSpurious emission: lt; 40db(with br=quot; quot; /gt;
Battery voltage: AA 1.5V *2 (Battery is not includes)
Battery life: gt; 10h
Package Included: 1 x Wireless System4 x Transmitter4 x Headset mic1 x Charger1 x Cable1 x Instruction manual