Black Diamond COSMO 350-R HEADLAMPFor multi use camping, around the house, and outdoor adventures that require a simple light with both an all purpose beam as well as night vision. This user has access to a power source and values the ability to go out on their adventures with a fully charged battery. Details: Rechargeable: Powered with integrated 1500 mAh Li ion battery with micro USB charge port 350 Lumen max output Recycled elastic headband featuring comfortable next to skin