N960 Pro Bluetooth Wireless Numeric Keypad 28 Keys Accounting Financial Mini Numpad - Grey ?The Bluetooth wireless numeric keypad is a good external device for laptops ?With the delete key,more convenient for input and correction,effectively improves work efficiency ?Fine workmanship,scissor foot keys,with comfortable typing feeling ?Specification: ? ?Product model: N960 Pro ?Material: aluminum alloy,plastic ?Supported systems: Windows,iOS,Android ?Number of keys: 28 keys ?Connection: Bluetooth connection ?Keyboard life: 5 million times ?Response speed: 30 milliseconds ?Bluetooth transmission distance: 10 meters ?Working current/voltage: 2mA/3V ?Battery type and capacity: Rechargeable 140mAh lithium battery ?Charging: Micro USB 5V-1A ?Use time: 80 hours ?Standby time: >4 months ?Product net weight: 93g ?Product size: 12.1*10*1.25cm Package included: ?1 x Numeric Keypad ?1 x Charging Cable ?1 x English User Manual