Split Design Ergonomic: Split design helps to position wrists and forearms in a natural, relaxed position. Wrist Rest: Soft cushioned wrist rest helps you to rest your wrist and forearm while typing and makes work easier and more comfortable. Easy Setup: Simply insert the nano USB receiver (stored at the back of the keyboard) into your computer and use the keyboard instantly. 6-Month Battery Life: Rechargeable lithium battery with an industry-high capacity lasts for 6 months with single charge (based on 2 hours non-stop use per day). Package contents: Arteck Split Ergonomic Keyboard, nano USB receiver (stored at the back of the keyboard), USB-C charging cable, welcome guide, our 24-month warranty and friendly customer service.