One handy feature with this screwdrivers is that it's brushless. It runs on a rechargeable battery, so it's completely cordless.
From Alan Wadkins
Fein AKBU35 PMQW Select 35mm 18v Cordless Magnetic Drill Mag Drill Bar
Conrad Electronic
Fein AKBU 35 PMQW Select -Core drill 18 V w/o battery