KF17S For Microsoft Surface Pro 8/Pro X,Bluetooth Keyboard with TouchPad/Pencil Holder 3-Color Backlit Wireless Keyboard •The Bluetooth 5.0 keyboard has a long-lasting button life,durable to use •With a pencil loop for storage,so that you are not afraid of losing your pencil •Fine workmanship,and equipped with 3 colors backlit so that you can normally use it at night •The keyboard has a built-in lithium battery,convenient to charge and use •Slim and lightweight design,convenient for travel,business trip,etc. •Specifications: •Bluetooth: 5.0 standard •Effective operating distance: 10 meters •Modulation method: GFSK •Working voltage: 3.0V~4.2V •Operating current: 3.0 mA •Sleep current: 100 days •Charging time: 2-3 hours •Lithium battery capacity: 650mAh •Sustainable working hours: not less than 30 hours •Lithium battery life: 3 million times •Wake-up time: 2-3 seconds •Button life: 3 million clicks •Operating temperature: -10°C ~﹢55°C •Charging port: Type-C interface •Backlight: .-color •Pairing code: none Compatible with: •Microsoft Surface Pro X Package included: •1 x Bluetooth Keyboard •1 x Cable •1 x English and Chinese Manual •Other items not included