No batteries required! The award winning Rocks-Off RO-80mm is now available without the need for batteries. The new Rechargeable RO-80mm has improved performance with an amazing 30% increase in power. ADVISORY NOTICE: the increased power could bring tears to your eyes ruining your makeup. But don't worry we've added a neat little mirror inside the case. RO-80mm Rechargeable is still only 80mm long but now features 7 scintillating settings. It's incredibly powerful yet whisper quiet when in use. The bullet comes in a uniquely crafted, compact, stylish and discreet beauty case. You can get up to 2 hours of non-stop action when fully charged. Charged via USB connection (cable included).