Dog light glowing pendant

Product model: K55034
Working mode: flashing / constant light dual function
Power supply battery: CR2032*2
Life time: 300h/500h always on/flashing
Visible distance: 5 kilometers
Waterproof rating: IPX81 100 meters underwater
Product material: high-strength ABS plastic
Working environment: -40ﾰC- 50 C

Size: about 4cm in length x 3.1cm in diameter and 2.7cm in thickness