Feature:1. With long battery life,the standbytime up to 100 days.The keyboard can be used continuously for 150 hours.The built-in battery can be recharged repeatedly, no need to buy batteries.2. The keyboard adopts round keycaps,uniform force,scissor foot structure,good rebound touch feeling.3. BT3.0 keyboard,with stable signal and quick transmission,10M distance coverage for wireless connection.4. Wide Compatibility,suitable for phones,tablets,laptops of Windows,Mac,Android and IOS system.5. Ultra-thin and small design of the keyboard,easy to carry.6. Colorful RGB backlight effects bring you dazzling visual experience.Specification:Features:Colorful RGB backlight effects bring you dazzling visual experience.The keyboard adopts round keycaps,uniform force,scissor foot structure,good rebound touch feeling.BT3.0 keyboard,with stable signal and quick transmission,10M distance coverage for wireless connection.Wide Compatibility,suitable for phones,tablets,laptops of Windows,Mac,Android and iOS system.Ultra-thin and small design of the keyboard,easy to carry.With long battery life,the standby time up to 100 days.The keyboard can be used continuously for 150 hours.The built-in battery can be recharged repeatedly, no need to buy batteries.Specification:Color: White/Black(Optional)BT Version: BT3.0Coverage Range: 10MKey Quantity: 78 KeysStandby Time: 100 DaysBattery Capacity: 180mAh/450mAh(backlight version)Continuous Work Time: 150 HoursCharge Time: 2-3 HourWork Voltage: 3.0-4.2VWork Current: <2.5mACharging Current: >200mAKey life: 5 million clicksCharging Method: Type-C USBItem size:24.6*15*0.5 cm / 9.7*5.9*0.2 in(L * W * H)Package size:26*19*3 cm / 10.2*7.5*1.2 in(L * W * H)Package weight:262g /9.2 ozPackage List:1*Keyboard1*USB CablePackage List:1*Keyboard1*USB Cable