Black Diamond STORM 500-R HEADLAMPFor a technical consumer who expects all around performance and features out of their headlamp but still values a small size and compact package. This user has access to a power source and values the ability to go out on their mission with a fully charged battery. PRODUCT FEATURES Rechargeable: Powered with integrated high capacity 2400 mAh Li ion battery with micro USB charge port 500 Lumen max output Recycled elastic headband featuring comfortable