The rechargeable 2211 Wrist-Light is a lightweight tool that provides hands-free illumination for a broad range of lowlight scenarios. The adjustable nylon bands offer quick access to 300 lumens and automatic alignment. The watch is constructed from a high-impact polymer and is powered by a single rechargeable lithium-ion battery thats easily charged using an included micro-USB cable. This is a must have for anyone who uses both their hands for any sort of activities in the dark.