Features: AloneFire B01 Headlamp Made of LED, ultra bright. Adjustable angle among 45 degrees, convenient for you to operate. With adjustable elastic strap, easy for you to fit your head. Three modes: Strong-Medium-Weak(long press 2s : Red light SOS) Red light: in any one file under the fast press 2 red light long, long press red light flash. Battery: 1000MAH built-in polymer lithium battery Charging time: 3H Discharge time: Strong - 5H / Weak : 15H weight: 94g Suitable for hunting, camping, night action, and so on.