SF-1089D For Microsoft Surface Pro 7+/7/6/5/4/3 Magnetic Keyboard with Backlit Touchpad Microfiber PU Leather - Grey Versatile Compatibility Designed for Surface Pro 3/4/5/6/7/7+,providing seamless integration with multiple device generations. Ergonomic Design Features a 12 ergonomic angle for comfortable typing,reducing strain during extended use. Premium Construction ABS keys with scissor mechanism ensure even pressure distribution and excellent rebound for superior typing experience. Enhanced Functionality Equipped with a multi-function touchpad and smart shortcut keys for intuitive operation. Illuminated Typing Seven-color backlight feature allows for comfortable typing in low-light conditions. Specifications: Bluetooth Version: 5.0 Working Distance: 10 meters Modulation: GFSK Operating Voltage: 3.0-4.2V Working Current: 60 hours Battery Lifespan: 3 years Key Force: 80 10g Key Lifespan: 5 million clicks Operating Temperature: -10 to +55 Charging Port: Type-C Compatible with: Microsoft Surface Pro 7+ Package included: 1 x Keyboard 1 x Cable 1 x English and Chinese Manual