FEATURES:
Two independent transmitters in one convenient (Dual Handheld/Bodypack/Headset)
Front panel power ON/OFF switch, volume control and AF signal level displays
Rear panel individual XLR AF Output jacks and 1/4" phone jack. Rear panel dual antenna. 
Wide frequency response, high S/N ratio
High precision quartz crystal locked frequency technology
Resist disturbing strongly, limit noise output
No hitting when putting in the switch, so can protect amplifier and Speakers
With a wide using range for over 100meters for compandor type or 50mters for non-compandor type in a good surrounding, for 40-60m for compandor type or 20-30mteters for non-compandor type in a duplicate one
With a complete working state and power level indication
A double-way channel design, two hands holding each two microphones at the same time to sing without disturbing caused by
 
SPECIFICATIONS 
Carrier Frequency: VhF 174-260MHz
Frequency Steadying: Less than 0.002%
Modulating Mode: FM
Audio Dynamic Range: Over 70dB
Audio Frequency Responses: 100Hz-15KHz
Audio Output Level: 0-280mV
S/N Ratio:  Over 70bdB
T.H.D: Less than 0.5%
Sensitivity: 3uV for 30dB S/N