DEXFLEX Adjustable Ring adapts to any finger, thumb, or even over a glove. Over 15 wearable configurations. Powered by a state-of-the-art lithium-polymer rechargeable battery. Has 150% longer runtime, and charges in half the time of similar-sized devices. 3 light modes. DEX FINGER LIGHT is weather-resistant. It features a USB-C charging port for fast, efficient recharging and a custom carrying case with a carabiner. Whether worn on your finger, attached to your belt, or tucked away in your pocket, the DEX Finger Light provides instant, dependable lighting.