Features:100% Brandnew and high qualityCompact,comfortable to use and easy to carryHelp you tohandle with numbers more professional and efficiently wherever and wheneverKeyboardcomes with 18 keys of 0-9 number keys, Del, Enter, Num Lock, Backspace, + - * /Simple plugand play, no driver installation requirementsWirelesstransmission, fast and sensitive, up to 10-meter working rangeBest forNotebook users who always work with number keys / mini digital keyboard"NumLock" key, switch to the number(0-9) function and other functions.Specification:Item Name:Wireless Numeric KeypadNumber ofKeys: 18KeysInterface:Wireless 2.4GVoltage: DC1.5VColor: BlackCaseMaterial: ABSDimension:14.0cm x 8.6cm/5.51inch x 3.38inch.KeycapsLife: More than 10 million timesOperationRange: 10M (Without signal disturbance and no direction limit)Power: 1*AAABattery (Not Included)SystemSupport: Windows XP/7/8/Vista/8.1/10, Linux, Mac os 9 etc.Package Included:1 x Wireless Numeric Keypad1 x USB ReceiverNO Retail Box. Packed Safely in Bubble Bag.