FT-1087D Bluetooth Keyboard Ultra-thin Backlit Keyboard for Microsoft Surface Go 1/2/3 •It can be used connected or separated and the keys provide a more natural typing experience just like a real laptop •LED Backlit Color Options: This typing keyboard cover features seven bright colors with adjustable brightness to help you type in any indoor or outdoor lighting •Productivity with a slim,surface-type cover that protects the screen and delivers responsive keystrokes •A long-lasting rechargeable battery offers up to 95 hours of continuous use and standby time up to 60 days •Only 4mm thick,ultra-thin and comfortable to touch,easy to carry •Perfect for Business,School,Travel,Office,etc. occasions Specification: •Bluetooth version: V3.0/4.0 •Effective operating distance: 10 meters •Charging current: >200mA •Standby time: 60 days •Charging time: 2-3 hours •Lithium battery capacity: 350mAh •Sustainable working hours: 95 hours •Button life: 5 million times •Working temperature: -10 to +55℃ •Compatible system: Windows Compatible with: •Microsoft Surface Go Package included: •1 x Bluetooth Keyboard •1 x USB Cable •1 x English User Manual •Other things not included