Feature:1. Aluminum Alloy Material: Using aluminum alloy panel material, strong and durable, support 7 color backlight.2. Bluetooth Connection: With Bluetooth 5.0, stable connection, strong and secure Bluetooth connection allows you to work efficiently within 10 meters.3. Compatible System: Ergonomic design for Windows, for OS system, a perfect complement to your laptop.4. Mini And Portable: Mini and compact, ultra thin and portable design, easy to carry around and type where you like.5. Suitability: Our 34 key Bluetooth numeric keypad is perfect for professionals to enter number sequences in spreadsheets, accounting programs and grade books.Specification:Item Type: Wireless Number PadMaterial: Aluminum AlloySupport System: for Windows, for OSNumber Of Keys: 34 KeysBluetooth Version: Bluetooth 5.0Keyboard Life (Number Of Keystrokes): 5 Million TimesResponse Speed: 30 MillisecondsWireless Bluetooth Transmission Distance: 10m / 10.9ydBattery Type: Lithium BatteryBattery Model: 503035Battery Capacity: 500mah (Included)Charging Time: 2 HoursUse Time: Open Backlight About 80 Hours, About 2.6 Hours When The Backlight Is Open To The MaximumStandby Time: Not Open Backlight > 10 Months.Package List:1 x Keypad1 x User Manual1 x Charging Cable