Color :BlackCompatibility :Apple iPad 10.9 & 11 inchMaterial :Metal + ABS + PCCharging Time :3 hoursBattery Standby :up to 90 daysOperating Distance :10 MetersFeatures :Foldable and Portable: easy to fold, easily take your Doqo wherever you take your iPad Pro. 360-Degree Rotation: work from any visual angle, explore multiple perspectives with its powerful rotating shaft. Backlight: with brightness adjustment suiting many occasion. Superior Keyboard Quality: scissor-switch keyboard for the best typing experience. High Sensitivity Touchpad: work smoother, richer and faster. Style and Resilience: all-aluminum alloy body design blends elegance with quality