Battery, USB, Precision screwdriver for cordless operation. With reversible function (left/right), high-performance lithium-ion battery, charging indicator, side micro-USB charging port, extensive bit assortment, and fast-charging function (0.5 - 1 hr.). Technical data: Operating mode: Battery pack Battery technology: Lithium-ion Battery voltage: 3.7 V Battery capacity: 260 mAh Max. torque: 3 Nm Function attribute 1: reversible Hex drive for bits: 4 mm Operating time: 5 - 6 h Charging time: 1 hr. Length: 180 mm Weight: 230 g Item Type: Rotary/loosening torque 3.0 Nm Main color black Length 18.0 cm Voltage 3.7 V