USB Rechargeable Tactical LED Flashlight Momentary or constant-on flashlight Sharp focused beam Non-slip Grip Aircraft-grade 6061-T6 aluminum housing Type III hard anodized finish IP-X7 Waterproof Heat, chemical, and impact resistant USB cord with rechargeable lithium-ion battery (included) Can also run on 2 CR123 batteries (not included) Serialized for identification UPC SKU USB-558XL