The ProtoArc EK01 Plus is a full-size, ergonomic keyboard with backlit keys in sleek black. This Bluetooth keyboard features a QWERTY layout and illuminated keys for easy typing in a dark environment. Made in China, this keyboard is designed for comfort and efficiency, making it a great choice for users looking for a stylish and functional input device.This item has been inspected for contents and condition.This item was from a major retailer, and the packaging reflectsa time on the shelves, boxing is not pristine, we have retaped errors,and inspected the item thoroughly.About this itemFull-Size Ergonomic Comfort: The curved split-frame design helps keep your hands, wrists, and forearms in a more natural position, while scooped keys fit your fingertips for smoother, more comfortable typing. The full-size layout supports efficient daily work. Please check dimensions before purchase, as it may require more desk space.Cushioned Wrist Rest & 3 Typing Angles: The curved padded wrist rest provides 54% more support to help reduce wrist fatigue during long typing sessions. Four adjustable feet offer three tilt angles, helping you find a more comfortable wrist position whether sitting or standing.Seamless 3-Device Switching: Connect up to three devices via Bluetooth and 2.4G USB, then switch between your laptop, tablet, and desktop with a simple key press. Compatible with Windows 8/10 or later, macOS X 10.12 or later, and Android 4.3 or later. Wireless connection only; wired mode is not supported.Adjustable White Backlighting: Choose from three brightness levels—Low, Medium, and High—to keep keys clear and comfortable in different lighting conditions. Battery life varies by setting: 12–13 hours on High, 18–20 hours on Medium, 34–36 hours on Low, and up to 90–100 days with the backlight off.4X Larger Rechargeable Battery: Powered by a 2000mAh rechargeable battery—4 times the capacity of the 500mAh EKM01 Plus—the EK01 Plus delivers longer use between charges. The backlight turns off after 1 minute of inactivity