The BOSCH Professional Screwdriver GO-2 is the only smart screwdriver - A simple push. 
 
Why this tool?
 
A perfect finish. 
4 times more powerful than any existing screw driver in size and form 
Intuitive operation style – Just push to drive screws (Push & Go) 
Intelligent E-clutch stops when you want to stop 
 
TECHNICAL DETAILS: 
 
Battery Voltage: 3.6V 
Battery Type: Lithium-Ion 
Torque (soft/hard/max.): 2.5/5/- Max Nm 
No-Load Speed (1st gear / 2nd gear): 360RPM / 360RPM 
Chuck Capacity: 6.35mm 
Screw Bits Torque Settings: 6
 
Comes in a Plastic Case together with a USB Charger and 2 Screw Bits