Features: Crafted from 6603 aluminium via precise machining, with an anodised surfaces finish that combines a cool metallic texture with wear and scratch resistance. Supports Bluetooth-compatible + corded double mode connection. In Bluetooth-compatible mode, it can simultaneously connection to multiple devices (such as laptops, tablets, and mobile phones), switching between with a single button press without cumbersome pairing. Features seven built-in customisable functions (press, rotate, press + rotate.). Through the accompanying software, button functions can be freely defined: Sound control: Turn the knob to instantly adjust sound, eliminating the need to switching between software applications. Multimedia control: Quick actions like pause/play and fast-forwards/rewinds for seamless entertainment. Mouse wheel/clicks: Simulate mouse scrolling with a long press and turn for precise document/webpage navigation, doubling productivity. Features an integrated color lighting module with multi-colour modes (rainbow, breathing, constant glow) and adjustable brightness. Customise light colours and dynamic effects via software. Specifications: Type: Precise Single Key Customizable Keyboard Component: aluminum Size about 8x6x3cm/3.15x2.36x1.18in Keyboard connection: USB-Corded connection + Bluetooth-compatible 5.0 connection Package Includes: 1PC Single key customizable keyboard note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.