Nitecore TUBE (blue) 45 lumen USB rechargeable keychain light, Exotac FREEkey system, EdisonBright USB Charger and EdisonBright USB cable High performance LED produces 45 lumen on high Built-in rechargeable Li-ion battery provides a runtime of up to 48 hours on low Integrated intelligent Li-ion battery charging circuit (micro USB charging port) Features two brightness levels and infinitely variable output mode This bundle includes Exotac FREEkey system, EdisonBright USB Charger and EdisonBright USB cable