I'm selling this because I haven't used it in a while. Taptek Mechanical Keyboard (English layout) • Features its own blue switches: Provides a refreshing typing feel while maintaining quietness. Easy to use in an office. • Wired and wireless compatible: Type-C connection or Bluetooth. Connect up to 3 devices simultaneously and switch with one touch. Compatible with Mac/Windows/iOS/Android. • High-capacity battery: Equipped with 1,800mAh. Approximately 13 hours of use with the backlight on, and up to 3 weeks with it off. N-key rollover supported. • RGB Backlight: 19 light effects & 4-level brightness adjustment. ON/OFF switchable. • Slim and lightweight design: 16mm thick, 540g weight. Compact and easy to carry. This is a portable mechanical keyboard characterized by "quiet and comfortable typing feel," "multi-device compatibility," and "portability."