4v, max, lithium-ion, cordless, rechargeable screwdriver with charger roto bit rotating bit, cartridge stores bits & provides easy accessibility, led light illuminates work surface, on board magnet holds extra screws, freeing up hands, ideal for furniture assembly & everyday household screw driving needs, 4v max lithium-ion battery holds charge up to 18 months, includes: charger & 8 screwdriving bits for a variety of tasks.