DescriptionUltra Rechargeable Battery And Super Long Illumination: Charge fully from any USB port in only 3 hours and provide up to 30 hours of constant light on a single charge. USB charging cable included(USB cable included).^EXTRA BRIGHTNESS: 160 Lumen Led (200 Feet Beam) With 2 SEPARATE BUTTONS to Select Glare Low light Strobe or Waved Induction Wide Variety of Light Modes and 60 Degree Tiltable Body Makes this Headlight Brightest and Most Versatile in its Class.It is good choice that perfect gift for family & friends.^Diverse Brightness To Use: 4 LIGHTING MODES on lumens led Headlight, Intelligence/Reaction/Manual Operation/Warning Sign(S.O.S flash light),25-30cm sensing distance,and tiltable body allows you to focus light where you need it for any use.^LIGHTWEIGHT AND COMFORTABLE: You won't Even Notice Wearing it. Weighing Only 2.4 OUNCES With Easily Adjustable, Ergonomically Designed Elastic Headband Makes this Light Perfect for Long Distance Runners or Anyone Else Looking For a Comfortable Fit.^Waterproof And Comfortable: The IPX4 rating means it is protected against splashing water from all angles. Weighting Only 2.6 OUNCES With Easily Adjustable, Ergonomically Designed Elastic Headband.^Wide Application: Perfect for indoor and outdoor use, best headlamps for adults & kids- working, camping, jogging, cycling, night running, walking, fishing, hunting, hiking, reading, and various night activities.^NOTE: The polymer battery has a small quiescent current. If the battery is not used regularly, please charge it every three months to avoid reducing the battery life. During use, when the brightness of the LED is dim,the battery tends to be completely discharged. To protect the battery, it should be stopped and must be charged in time (It should not be used continuously and cause the battery dead, the battery is vulnerable to damage.)