XtremepowerUS 102Pcs 3.6-Volt Cordless Rechargeable Screwdriver Screw Gun Kit No-load speed: 250rpm Max torque: 4N.M Voltage: 3.6V Included Metal Case Contents: 100 pcs Screwdriver Bits, 1 pc Bit Holder, 1 pc UL/CUL Adaptor, 1 pc Cordless Screwdriver