Audio, led light and vibrarion alarm
1. External size: 420(l)*138(w)*30(h)mm
2. Weight: 272g
3. Battery: standard 9v battery
4. Detection distance
A. Pin: 30-60mm
B. 64 model handgun: 150mm
C. 6 inch long knife: 160mm
D. Diameter 20mm steel ball: 90mm
5. Color: black .
