The Fenix E03R V2.0 Keychain Flashlight is a welcomed addition to your keychain. It is super small, compact, and extremely bright. The recessed single switch operates on/off and has seven lighting modes including four brightness levels, a red light, red flashing, and a pulse light. A large battery level indicator lets you know when to recharge the built-in battery with a USB-C charging port. This little light is built tough with a metal CNC machined body, a hard-anodized anti-abrasive finish, and an IP66 rating, making it heavy rain resistant, and dustproof.