ProTac HL USB Headlamp - USB cord, elastic and rubber straps - Clam- The HL Series now has a hands-free, USB rechargeable lighting solution! When your task requires both hands and a bright light with a wide flood beam, reach for the ProTac HL USB Headlamp Charge on-the-go using almost any USB source Plus this headlamp accepts multiple battery sources as a backup, so you’ll always have power when you need it