This keyboard is very compact with 84 keys, and it adopts the keyboard and line separation mode, which is ergonomic and very comfortable for typing. With mechanical key cap design, mute keys, 3 modes to connect, including wireless, wired, and 2.4G, and it has an RGB backlight. This keyboard is very fashionable. Made from ABS material, the keyboard is durable and long-lasting. The length of this product is 31cm, the width is 12cm and the height is 5cm. The product is suitable for PC, notebook, etc. Item Name: Keyboard Material: ABS Number of Keys: 84 Multimedia Function Keys: Yes Backlight Function: Support Backlight Whether to Support Ergonomics: Support Transmission Mode: Bluetooth-compactible 5.0/2.4G Support: Desktop Computer, Notebook, Bluetooth-compactible Version of the Cell Phone System Compatible Battery Capacity: 3000 mAh (Included) Features: Backlight, Widely Compatible, Ergonomic Size Details: L: 31cm/12.2", W: 12cm/4.72", H: 5cm/1.97"(Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Keyboard 1 x Receiver 1 x Data Cable