【A Numpad and Calculator Combined】A 2-in-1 numpad. Switch between a PC numpad and a standard calculator with just a click. Activate Windows Calculator app with the dedicated shortcut button. 【Compatibility】Compatible with Windows and Android. 【Connectivity】Connect via Bluetooth/2.4G/Wired USB-C. 【Independent Control Panel】Enjoy effortless operations with just a turn and a click. 【Retro LED Display】The numpad features a nine-digit seven-segment display. Simple and highly visible. 【Battery Life】160 use hours with 4 hours charging time. 【More Features】18 keys; Kailh Box White switches V2; Hot-swappable PCB; Support n-key rollover; Top mount style; Dye-sub PBT keycaps.(N, Fami, and M editions); Double-shot ABS keycaps. (C64 edition); Double-shot ABS keycaps with SA profile. 8BitDo 18 Keys Retro Mechanical Numpad, Supports PC Numpad & Standard Calculator Mode, Hot-swappable, PC Calculator Shortcut Button, Bluetooth/2.4G/Wired Numpad for Windows and Android - C64 Edition