LANGTU LT84 Mechanical Luminous Keyboard 1. Support system: WinMac 2. Connection: Wired (Type-CUSB-C port)Wireless (Battery capacity: 4000mAh) optional 3. Number of keys: 84 4. Material: ABS 5. Key and cable separation: support 6. Macro Setting: support 7. Wired model: cable length about 1.5m 8. Size: about 36.2 x 13.8 x 2.9cm 9. Weight: about 900g Features: 1. Mechanical knob design for quick adjustment of light and volume 2. Unique sandwich structure, the positioning plate is tightly fitted around the edges of the housing, allowing the plate to be centered with a little bending space for cushioning. 3. Support hot-swappable keys, compatible with most of the axis key replacement without welding, easy and convenient to operate, you can replace the axis according to the needs and habits of use. 4. Fine-tuned satellite shaft and balance bar, factory has been thick moist, so that the keys feel more silky smooth, restore the key shaft feel 5. Equipped with EVA sandwich cotton and Poron shaft pads between the positioning board and PCB, which increases the rebound speed of the keys and reduces vibration at the same time, so that the sound of the keys can be improved, and it is easy to play mahjong sound. 6. The bottom is equipped with a silicone bottom pad to fill the cavity between the PCB and the bottom case, which can well inhibit the cavity sound. 7. Dazzling color backlighting with 19 adjustable light effects, which can be adjusted by knob or keyboard shortcut keys. 8. Compact layout design, retaining the full functionality of the keyboard, saving space on the desktop. 9. Separate keys and cables for easy portability