FEATURES
Digital FSK modulation; 16-bit / 16KHz samplin rate
UHF 780-830MHz, Pre-set 1000 groups ID codes
Two-way communication; support  tour-guide and intercom function
10 sets of systems can be used at the same time without interference
OLED display shows the channel , frequency and battery life
Unilateral ear hanging type headset with microphone function
Powered by high capacity lithium-ion battery, playtime is more than 12hrs
Up to 900 feet(300m) line-of-sight operating range
Designed for tourist, hotel, traning, simultaneous interpretation applications

SPECIFICATION
Modulation : GFSK
Audio sampling: 16-bit @ 8KHz
Dynamic range: > 70dB
Signal to Noise:  > 65dB
THD: < 3%  at 1KHz 
RF range(open field) : > 50m
Operating temperature: -10 ~ 50℃

Receiver
Receiver sensitivity: -110dBm
Audio output: 3.5mm Earphone output
Battery: Li-Polymer(3.7V / 600mAh)
Battery life : > 20hr 
Charging time: Approx 6hr 
Antenna: Headphone
Dimension: 69(H) × 40(W) × 12.1(D)mm

Transmitter 
Audio input: 3.5mm Mic / Line
Max. input level : Mic: -30dBV / Line:0dBV
Battery: Li-Polymer(3.7V / 600mAh)
Battery life : > 15hr 
Charging time: Approx 6hr 
Dimension: 69(H) × 40(W) × 12.1(D)mm