Fluid and Quiet Mechanical Typing: Arteck Mechanical Keyboard features Tactile Quiet brown switches that deliver next-level feel and flow with less noise. Back: Staineless Steel. Low-profile keys, more comfort: A keyboard layout designed for effortless precision, with a full size form factor and low-profile mechanical brown switch for better ergonomics, Caps Lock and Battery indication. Easy Setup: Simply insert the nano USB receiver (stored at the left inside 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 Mechanical Full Size Keyboard, nano USB receiver, USB-C charging cable, welcome guide, our 24-month warranty and friendly customer service.