RECHARGEABLE BATTERY & BIT CARTRIDGE IN SIDE: the 500mAh rechargeable lithium battery will soon be fully charged in 3-5 hours and the charger is universal version, great portability for you; a set of 6 pieces 25mm bits were stored in the cartridge in the front of screwdriver OFF-SET HEAD DESIGN: the off-set head design and its compact body help users to work swiftly in tight space with less effort, especially for female friends HUMANIZED DESIGN: The soft rubber-wrapped handle, front LED light for your convenience in dark working environment and power indicator for charging; these humanized details make Wesco electric screwdriver a great choice QUICK CHANGE CHUCK: a quick change chuck and reverse/forward rotation switch allows you to process various projects effectively and efficiently, strong power of 3.5 Nm and high speed of 180/min is also outstanding in screwdriving WHAT YOU GET: 1 x Wesco Cordless Screwdriver, 1 x 1.5Ah domestic battery, 1 x battery charger, 6 x 25mm bits stored in cartridges, 1 x user manual for detailed instruction in operation; 2 years warranty since purchaseI love my Wesco impact driver and hammer drill, so I thought I would buy this for the convenient cartridge. The whole thing feels so cheaply made, and the cartridge is not as easy to use - it tends to fall out when you try to rotate it, or simply not line up with where it needs to be very well. I don't know if the worx version is better, as it is made by the same OEM, but it might be a better bet than this. I also own the little Bosch screwdriver, and it has better power than this, and is rechargeable via usb which is handy - I've realised that this actually makes it more handy than the wesco which is now relegated to backup status and left under the stairs.