/> Product size (L x W x H): 290x100 x40mm / 11.42 x 3.94 x 1.57 inches Package size (L x W x H): 330 x 130 x 70mm / 12.99 x 5.12 x 2.76 inches System support: Win XP,Win7,Win8,Win10,Win11,Android,MAC   How to pair Bluetooth: Step 1: Turn on the Bluetooth power switch on the back. Step 2: Press the FN'E.R.T key to select one of the devices, and the blue light below the key will flash quickly. Only then can the host of the Bluetooth device to be connected be turned on, and a Bluetooth device (SK62 3.0/5.0) can be added for searching, and the blue light will be turned off after successful pairing; If the keyboard doesn't match the code successfully in 1 minute, it will automatically turn off the lights and sleep, and any key is needed to wake up and re-pair. 2.4G wireless pairing: Press FN'Q for a long time, press the Q key to flash the code, and then insert the receiver. After successful pairing, it indicates that the green light will go out and return to the current light. Your best gaming partner MOTOSPEED SK62 is a Triple Mode BT5.0/2.4G/Type-C Mechanical Keyboard — 60% (61 Key) Gaming Keyboard,makes connection effortless. Triple-mode accommodates to any situations for you to use. With LED backlight, easily switches backlight modes via Fn ' Y button. Engineered for durability Ensures even stricter requirements are met for each switch produced, this gaming keyboard adopts double injection technology and suspended keycaps, not discolored and more wear-resistant easily, resulting in a lifespan of up to 50 million keystrokes. Please Note: 1.Since Apple's system is not open source, it may affect the use of a few shortcut keys, but it will not affect the basic functions of the keyboard. This is normal. Package list: 1 * Keyboard 1 * USB cable 1 * 2.4G usb receiver 1 * type-c usb cable