This COB LED headlamp is perfect for all your outdoor activities. It has a USB power source. The headlamp is made of silicone material and has 4-6 lights with a rechargeable battery that can last up to 5 hours. The HEAD brand headlamp is designed for all types of outdoor activities such as camping and hiking. It has an IP66 rating which makes it resistant to water and dust. The lighting technology used is LED which provides a bright and clear view. This unit comes with a head band that can be adjusted to fit all head sizes.