【Versatile Connectivity】Supports three connection modes: 2.4G wireless and dual Bluetooth-compatible, allowing seamless switching between multiple devices. 【Compact 81-Key Layout】Efficient design with 81 keys, offering a space-saving solution without compromising functionality. 【Long-lasting Battery Life】Equipped with a 2000mAh battery, providing up to 150 hours of use with backlight off, ensuring extended productivity. 【Customizable RGB Backlighting】Features rainbow backlight with adjustable brightness, enhancing visibility and adding a stylish touch to your setup. 【Comfortable Typing Experience】Made with high-quality ABS keycaps and membrane switches, offering a comfortable and responsive typing feel. 【Wide Compatibility】Compatible with Windows, Mac, iOS, and Linux systems, making it versatile for various devices and operating systems. 【Energy-Efficient Design】Automatic sleep mode after 10 minutes of inactivity and backlight auto-off feature after 60 seconds, conserving battery life. Specifications: Connection mode: 2.4G+BT1+BT2 Number of keys: 81 Keys MCU: HS6621DQ? Return rate: 133Hz Charging current: maximum 560mA Voltage/current: 3.7V/50mA Button life:50 million times or more Keycap material:ABS Charging interface: USB to Type-C (1.5M) Luminous Type: Rainbow backlight Keyboard type: Membrane keyboard Number of conflict free keys: 24 keys without conflict Battery capacity: 2000mAh Bluetooth-compatible, 2.4G mandatory code matching mode: Esc+Q Supports: connecting 2.4G and two Bluetooth-compatible devices, with a wireless transmission distance of 10 meters Product size: 35.9x14.6x4.3cm Product weight: 579g