- Built-in silicone pad, 360 degree waterproof handling.
- Small, thin, no screw, replace the battery easily.
- Match to all of SINGCALL receiver.
- Anti-temperature and humidity changes. Strong EMC anti-interference.
- Size: 65*65*16.5mm
- Net weight: 37 grams
- Material: PC Surface: Polishing , Spray painting, Frosting Key: PC
- Frequency: 433.92Mhz
- Call distance: 40-60m indoors, 500-800m in open air
- Battery: Alkaline Battery 12V 23A
- Battery life: 12-18months