Powered by a 4V 2Ah lithium-ion battery. Select direction and simply apply small pressure to operate. Alternatively press operation switch. Straight pen shaped design. 1/4" Magnetic bit holder for easy changing. Integral LED light illuminates upon operation. LED battery level indicator. Rubber grips add comfort and grip. Supplied in a compact storage case with 25-piece bit set, extension bit holder and USB charging cable. 5Nm of automated torque in both directions. Hand tighten up to 10Nm. Model No. CP4VSD RECHARGEABLE - Powered by a 4V 2Ah lithium-ion battery. PUSH TO OPERATE - Select direction and simply apply small pressure to operate. Alternatively press operation switch. COMPACT - Straight pen shaped design. MAGNETIC - 1/4" magnetic bit holder for easy changing. LED - Integral LED light illuminates upon operation. STAY CHARGED - LED battery level indicator. COMFORTABLE GRIP - Rubber grips add comfort and grip. STORAGE CASE - Supplied in a compact storage