BEST-9911+ 57 in 1 Electric Screwdriver Set Rechargeable Cordless Power Screw Driver Kit With Magnet Pad Magnetizer 1.The Third generation electric screwdriver set2.Slim aluminum alloy housing with pen-shape design3.Works continuously for 5 6 hours4.Includes 56pcs of S2 steel screwdriver bits5.Great tool for repairing projects, such as smartphones, cameras, RC drones, laptops, etc.Brand Name:BESTModel Number:9911+Power Source:Electricity, DCType:Magnetic ScrewdriverRated Voltage:3.6v, 3.6VNo-Load Speed:150r/minDimensions:200*95*23mmWeight:725gUsage:Remove ScrewsBit Size:4*28mm(D*H)Screwdriver Bit Material:S2 SteelCertification:ROHS