Bosch go screwdriver has a 5mm maximum torque. The screwdriver is charged using the micro USB port and is fully charged in 1.5 hours, lithium ion rechargeable battery. It has a simple switch between electric and manual gears. The screwdriver will operate automatically if you push the screwdriver bit onto the screw. 0-360 RPM times / minute no-load speed, maximum torque range is 2.5-5N/m, 3.6 volts rated power, non-slip handle, torque adjustment, battery power display light.