BLUETOOTH 34 KEY MULTIPLE NUMERIC KEYPAD, WIRELESS PORTABLE SLIM NUMERIC PAD FOR IPAD, LAPTOP, COMPUTER, WINDOWS ANDROID IOS COMPATIBLE Specification: Material: aluminum alloy + ABS plastic Support system: Windows, iOS, Android Number of keys: 34 keys Bluetooth version: Bluetooth 3.0 Response Speed: 5 milliseconds Wireless/Bluetooth transmission distance: 10 meters Working current/voltage: 2mA/3.7V Built-in lithium battery: yes Capacity: 110mAh Charging Time: 2 hours Usage time: 50 hours Standby time: >2 months Regular Color: Silver Product Size: 14.6*11.4*0.9cm Package list: 1 x numeric keypad 1 x user manual (not Polish) 1 x data cable. Characteristics: 34 keys: The Bluetooth numeric keypad has 34 keys. More functions and key combinations. This makes data entry easier and more accurate. Connect Bluetooth: Pair the number pad wirelessly to your laptop. The distance to the connected device is less than 10 meters. Charging & Battery: The Bluetooth numeric keypad comes with a USB cable. Built-in lithium battery provides extra long standby time. When fully charged with a micro USB cable, it can be stored in standby mode for up to 30 days. LED light: The red LED lights up while charging and turns off when the battery is fully charged. The blue LED is on during pairing and ends when pairing is successful. Wide Compatibility: Windows 2000 / Me / 98 / XP / Vista / 7/8/10 system Android systems OS and iOS system (Important Note: Calculator keys and function keys cannot work on these systems, all other number and symbol keys are fully supported).