Features: 
This LED cap light is good design for biking, jogging (use the flashing mode), camping, hiking and anytime you need bright illumination

Lightweight, compact and engineered to withstand extreme conditions and use Attaches to cap for the most practial, hands-free light source available 

5 Ultra bright LEDS 
ON / OFF switch 
2 modes: 5 LED light, 5 LED flash 
Power supply: 2* CR2016 cell batteries ( included) 
Put 2 pcs CR2016 cell batteries, it can last for approx 48 hours 
The life of LED is more then 10,000 hours 

Specification: 

Color: black 
Item size: 85*60*20mm 
Package size: 172*124*30mm 
Weight: 54g (include batteries) 
Package weight: 65g 

Packing content: 
1 x Head Light 
2 x CR2016 Cell batteries