Size：65mm X 65mm X 16.5mm
Net Weight：37g
Surface:  Polishing , Spray painting, Frosting
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
The degree of waterproof：Waterproof
Applicable  receiver: All kinds of receiver