Experience the magic of light. This wireless keyboard is powered by solar energy and artificial light, making it usable anytime, anywhere, rain or shine. The innovative Logi LightCharge energy management technology allows the Signature Slim Solar+ to effortlessly maintain its power, almost like magic. ~ Product Size: 142.9 x 430.8 x 20.2 mm(Keyboard), Weight: 700 g Battery life: 4 months Battery: Self-charging through renewable solar energy and available artificial light. Compatibility : Required: Bluetooth Low Energy technology, Windows 10, 11 or later, macOS 12 or later, Linux, ChromeOS Accessories Included: Keyboard x1pc, User Files x1pc ~ • Return and refund are not accept. • Free shipping to HK/Macau when spending over $500 onwards • China area shipping fee $130 + Local SF Express + Local SF Express • Two business day shipping. Sent via SF express/ Kerry courier • Exchange of defective units purchased in 7 days ~ *Photo for reference only