Feature 1Aluminum alloy 35key wireless ultrathin external universal numeric keypad, compatible with Bluetooth 5.0. 2Dual system settings, support for Windows8/8.1/10 and for Mac OS system, asynchronous link design, does not interfere with computer operation. 3For MAC OS mode, you can set for F13~F19 keys to any shortcuts recognized by the system. 460 minutes keyboard no input, the keyboard enters the sleep standby state. 5Can work continuously for 130 hours, continuous standby for 180 days.SpecificationItem Type: Numeric KeypadMaterial: Aluminum AlloyOptional Color: Black / Iron GrayCompatible with Bluetooth Version: Compatible with Bluetooth 5.0Working Distance: 8-10 MetersBattery Capacity: 300mAhCharging Voltage: DC 5VWorking Voltage: DC 3.7VWorking Current: 1~3mAContinuous Working Time: 130 hoursSleep Mode: 60 Minutes Keyboard No Input, The Keyboard Enters The Sleep Standby StateStandby Current: 40uAStandby Time: 180 days of continuous standbyNote: The use of multimedia buttons, the symbols at the top indicate the function of these buttons for windows mode, the symbols at the bottom (forF13~F19) indicate their functions for mac mode. .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Numeric Keypad1 x User Manual1 x Data CableNoteThe use of multimedia buttons, the symbols at the top indicate the function of these buttons for windows mode, the symbols at the bottom (for F13~F19) indicate their functions for mac mode.