High and low modes (double tap the tail switch to change modes); Lithium-ion battery charges in-product in 4 hours; Multi-function push-button tail switch with charge indicator (Red = charging, Green = charged); Durable, anodized machined aluminum construction; scratch-resistant polycarbonate lens; Metal sleeve protects charge port; slide sleeve forward to reveal charge port; Removable pocket clip also clips onto brim of hat for hands free use; IPX4 water-resistant; 1m impact resistance tested; Ultra-compact design fits in the palm of your hand, comfortably fits in your pocket; USB cord and high-strength lanyard included