Surmen M75 75% Wireless Creamy Keyboard With Gasket, Pre-Lubed, Shadow Red ?3-Mode Connection?Geared with SURMEN advanced tri-mode connection technology, USB-A to C wired, BT 5.0 2.4Ghz wireless modes. Up to 3 devices can be connected via Bluetooth at the same time, and can be easily switched by the knob. Compatible with Win/Mac dual system, unlimited use. ?Noise Dampening,pleasing acoustic feedback?The custom white linear switch is paired with a fitted silicone pad and sound-absorbing sponge to reduce cavity sound located between the PCB, along with the silicone gasket. Significantly reduce the sound resonance between the metals and reduce the cavities noise. Creating a clear and pure switch traveling sound ONLY, no extra string mushy noise. ?Pro Software Supported?Through simple programming settings, you can configure multiple common operations into one click, greatly improving work and gaming efficiency. Macros with different keybindings or shortcuts for more efficient work and gaming. ?Hot Swappable South-facing LEDs ?The SURMEN M75 Keyboard 75 Percent compatible with most 3 pin and 5 pin mechanical switches. You don?t need to solder it. What?s more, the south-facing RGB is designed to better illuminate the keyboard backlight from the typist?s angle and free from interference while changing the switches. ?Music Rhythm RGB Keyboard?The rgb mechanical keyboard features unique music rhythm RGB light effects that change with the melody and beat of the music. Meanwhile, Custom keyboard has 16 unique RGB light effects that can be customised with over 16.8 million RGB colours through the driver. ?Long Battery Life, Customizable RGB Lighting?Say goodbye to the hassle of frequent charging! This hot-swappable keyboard is equipped with a high-capacity 5000mAh battery. When using Bluetooth mode, battery life lasts up to 178 hours with the light off and up to 42 hours with the light on. Additionally, you can customize the RGB lighting to your liking.