Come and see our amazing products! Simply insert the USB receiver into your computer and use the keyboard instantly.Stainless steel material gives heavy duty feeling, low-profile keys offer quiet and comfortable typing.Rechargeable lithium battery with an industry-high capacity lasts for 6 months with single charge (based on 2 hours non-stop use per day). Pls confirm further with us if any query about packing info, inventory status and time schedule.