The flashlight is very Portable,you can use it to running At Night. Adjustable nylon wristband with O ring type strap . There is a LED watch,to help you to know time and date. Include rechargeable lithium-ion battery & USB charging cable Right click on the show time Under the right according to the two-display the date Left click on the-display light and strong light time(maximum 2 -3.5hours) Under the left key press two-show weak light and weak light time(maximum 9 hours) Left by the three--shut off the power Key about long press shows SOS distress signal at the same time Right click adjustable time dete long right click right click to time flash adjustment,adjust the next,then right click to flashing adjustment and so on. Long press the left key show flash flash. Fit for Everyday carry camping, hiking, hunting, caving, night ride, sports and outdoors items: Fishing ,camping, hiking traveling by car. Specifications: Shell material: High quality nylon plastic Color: As the picture shown Lens: Resin convex lens Battery capacity:800mAh lithium-ion battery Max luminous flux: 600LM Function lumens: 600/250/250 Maximum range: 50m -100m Stalls: 4-speed Focus: No Continuous lighting time: 2-3.5 hours Time Life: 100,000 hours Waterproof: Yes Rechargeable: Yes Color: Black Waterproof level: IPX6 Net Weight: 100g Light Size :about 6*5.5*2cm Wristband Size: 22*2.4cm (L*W) Battery: One Lithium-ion(Included) Package Included: 1 x LED Watch 1 x Charging Cable Notes: If you have any question, please contact us before leave negative feedback, we will try our best to serve you, thank you for your understanding HOPE YOU HAVE A NICE SHOPPING