Features: The GMK81 DIY Mechanical Keyboard Kit allows for easy Switches replacement without soldering, providing a hasslefree maintenance experience. Hot-swappable switches: easily replace switches without soldering for easy customisation and maintenance Wirelessly Connectivity: Connect device wirelessly via Bluetoothcompatible5.0 UsbC to desk space and reduce cable clutter. Choose from different 3modes (Game Office and eSports) to customise your typing experience increase productivity. Small keyboard,this keyboard makes it easy to transport and use. Specifications: Number of key: 81keys +1knob Hot-swappable: Yes Connectivity: TypeC, Bluetoothcompatible5.0 and 2.4GHz Construction: Gaskets Mount Housing material: ABS plastic PCBthickness: 1.2mm Board Material: PC Battery capacity: 3000mAh LED direction: South facing Cable length: 1.5 metres Size: about 371x121x40mm/14.6x4.76x1.57in Package Includes: 1Set GMK81 DIY Mechanical Keyboard Kit note: Due to the different monitor and light effect, the actual color the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring difference due to manual measurement.