main features:
1.Handle handset shell using a special PC / ABS plastic; 
2.Split structure(made of up-and-down handle handset), sealing, flame retardant. Withstand the percussion is not broken, twisted pull no distortion, no burst at minus 40 degrees.  
3.Use anti-puncture, hifi transmitter and receiver to ensure the transmission characteristics matching the phone call, in line with requirements of 4.2 GB / T15279-2002's. 
4.B10 keypad is assemabled in this handset, can be used directly.
Technical parameters:

Conditions of Use: 
1.Ambient temperature: -30 ~ + 50 ℃ Relative Humidity: 10% ~ 95% 
2.Atmospheric pressure: 80 ~ 110 kPa 
Environmental Noise: ≤60dB 
3.Operating Frequency: 300 ~ 3400 Hz

Transfer characteristics: 
1.Sending loudness rating (SLR): 5 ~ 15 dB 
2.Receiving loudness rating (RLR): - 7 ~ 2 dB 
3.Sidetone masking assessed value (STMR): ≥ 7 dB

Packing information:
Garton size
430*390*380 mm
12.5KG/CTN
25PCS/CTN