Non-slip design. Reflector: Convex Lens. Battery type: 1 x Rechargeable 3.7 V Battery (included). Super bright, glare effect. Adjustable Focus Range for different usage. Switch: This LED torch in the middle of the body to on/off switch to operate. This LED Flashlight suitable for Self Safety, hunting, cycling, climbing, camping and outdoor activities etc. 3 modes adjustable brightness, high/low/strobe. The water resistance design is for use in rainy day- not for swimming or submerging in water.