Hands-Free Cap Light A part of your hand to control the lamp. Dual sensors, more sensitive detection gesture. High performance with low weight 100 lumens maximum output, 43g ultra-light weight, weighs less than an ounce, no burden when attaching to your hat. Easy to use with its easily accessible power switch and small footprint, the cap can be attached to the edge of most caps in seconds with a visor or protective helmet, or can also be used as a torch. Waterproof and multifunctional can be attached to the edge of a cap and is super easy to install and use. Waterproof and designed for extreme conditions and rough use. Ideal for cycling, hiking, camping, climbing, fishing and other outdoor activities. USB Rechargeable Headlamp The headlamp has a built-in 1000 mAh lithium-ion battery. NOTE 1. The size of the product is measured manually, and there will be an error of 2-3mm due to factors such as different measurement tools and measurement methods. 2. This product is all taken in kind, but due to differences in photography, lighting, color deviation, and personal understanding of color. As a result, there may be some color difference between the actual product and the photo, and the color is subject to the actual product. 3. Please take good care of our products