Color:Space Gray Macally BTSOLARKEYSG Apple Wireless keyboardthe sophisticated Bluetooth solar keyboard, specifically designed for Mac, has 4 built-in solar panels that constantly charges an internal li-ion battery under any indoor or outdoor light source. You will never need to use or manually recharge batteries again, making it the ultimate Apple replacement keyboard.* solar-powered and charged keyboard works under all light sources such as sunlight and/or indoor Lightning * built-in 600 mAh rechargeable lithium-ion battery lasts over 2 months even in total darkness(hassle-free, no need to replace battery)* on/off switch to save battery lifestylish Bluetooth keyboard* stable Bluetooth connection and easy pairing* uncluttered cable free workspace* Space Gray finish to match modern Apple computers and laptopsmaximum typing and ergonomic proficiency* 110 Full size, Thin and quiet scissor-key-switch keycaps for a sensitive and responsive touch* 17-key numeric keypad to quickly and efficiently enter long sequences of numbers* concave key cap design for faster and a more comfortable typing experience* anti-slip grips with added weight tilt bar for comfortable typingsystem requirements and compatibility>* any Apple computer equipped with Bluetooth; Mac OS X V10.6 and later; light source such as sunlight and/or indoor lighting* for Mac Pro; I Mac; Mac Mini; MacBook; MacBook Air; MacBook Retina (with Touch Bar) etc.*twenty-one updated Apple shortcuts* updated with: "system power down or sleep," "spotlight search," and "force quit"* multimedia and more: brightness, cut, copy, paste, previous/next track, Play/pause, mute, eject, full screenshot, custom screen shot, print, file save, zoom in/out, Volume up/downworry-free warrantyat Macally, we believe in our products. That's why we back them all with a one-year warranty and provide friendly, easy-to-reach support for any of your questions.