How to use and switch 2.4Ghz & BT mode? 2.4Ghz mode: Step1. Switch Power On. Step2. Insert the wireless dongle to a USB port on the PC. Step3. Turn the knob to the 2.4G icon, short press the knob to select 2.4Ghz mode. BT mode: Step 1. Switch Power On. Step 2. Turn the knob to select the connection mode and press the knob to confirm it. Step 3. Turn the knob to the BT1 icon, long press the knob to enter BT1 pairing mode, and the display shows "BT1 Pairing". Step 4 Turn on the bluetooth of computer/phone, then connect the device. Previous page Next page 1 Tri-Mode Connection 2 3-Layer Dampening 3 RGB Backlight 4 Pro Driver 5 Pre-lubed Switch Long Battery Life Built in a 3000 mAh rechargeable battery, last up to 7 days normal use (count 8hrs per day). Adjustable keyboard angles Comes with 1 adjustable keyboard feet which can give you the comfort angle you need for marathon gaming sessions. ISA Profile Keycaps Ergonomic height design similar than Cherry profile, while increasing the contact surface between the finger and keycaps, bring you a comfortable typing experience. Pre-lubricated Switches Pre-lubricated linear custom switches with carefully calibrated stabilizers, with buttery-smooth operation, perfectly tactile response. Womier Mechanical Gaming Keyboard M87 Pro Add to Cart M87 Pro Add to Cart M87 Combo 1 Add to Cart M87 Combo 2 Add to Cart M84 Add to Cart L75 Low profile See Details L75 Low profile Add to Cart Customer Reviews 4.4 out of 5 stars 308 4.4 out of 5 stars 308 4.5 out of 5 stars 7 4.5 out of 5 stars 7 4.3 out of 5 stars 390 4.3 out of 5 stars 390 3.9 out of 5 stars 40 Price $83.99$83.99 $78.99$78.99 $49.99$49.99 $49.99$49.99 $69.99$69.99 — $47.99$47.99 Layout TKL TKL 75% Layout 75% Layout 75% Layout 75% Layout 75% Layout Connection 2.4G/Bluetooth/Type-C wired 2.4G/Bluetooth/Type-C wired Type-C wired Type-C wired 2.4G/Type-C wired 2.4G/Bluetooth/Type-C wired 2.4G/Bluetooth/Type-C wired Switch Type Hot Swappable Hot Swappable Hot Swappable Hot Swappable Hot Swappable Hot Swappable Hot Swappable Keyboard Switches OUTEMU White Switches OUTEMU White Switches Gateron Red Linear Switch Gateron Red Linear Switch Gateron Yellow Switch Outemu Red Switch Outemu Red Switch Backlit RGB RGB RGB RGB RGB RGB RGB DIY Software ✔ ✔ ✘ ✘ ✔ ✔ ✔