Size：130mm X 70mm X 42mm
Net Weight：170g
Material：ABS
Surface:  Polishing
Function keys：Five
Frequency：433.92Mhz
Call distance: 200mt (open distance) 
EMC anti-interference :Strong
EMI compatibility: In line with the national standard
Battery: Alkaline Battery    12V  23A  One
Battery life:  about 12-18months
Anti-skidding: Environmental protection silica gel
The degree of waterproof：General spraying water
Applicable  receiver: All kinds of receiver