The Laube Super Battery Packs are quick changeable and require no tools. Quick recharges on about 45 min. Actual clip time is about 1.5-4 hours depending on weather you use it on high or low. This item is compatible with any standard Lazor clipper handpiece, and shear handpieces. Not for use with Mini Lazors. Features double thermal safety to prevent over charging, built-in switch protector and anti-roll clip handle. 2-Speed [high/low]. 9.6v-4.8v DC. Made in USA. Order extra batteries for non-stop clipping! Available in black only. Weighs about 10oz. 4 1/4"H x 2"D