RedThunder K75 Wireless Keyboard and Mouse Combo,75% Membrane Side-Engraved Keyboard,Optical Gaming Mouse with 4800DPI,3 Modes(BT/2.4G/Wired),Dual System,RGB Backlit,Rechargeable Battery,Contour White — Open-Box, 8% Off

【3 Connection Modes & Dual System Compatibility】Support BT5.0/2.4G/Wired three connection modes, 10m unobstructed stable wireless transmission; one-key switch between Windows/macOS via Fn+A/S (blue/yellow backlight flash for confirmation). Seamlessly switch among Bluetooth (FN+1!/2@/3#), 2.4G wireless (FN+4$), and wired mode (FN+5%) with FN shortcuts. Use the original charging cable to charge and type simultaneously in wired mode. Note: The keyboard and mouse share a single USB receiver, which is located at the bottom of the keyboard or mouse.

【75% Compact Layout & Side-Engraved Character Design】80-key side-engraved keyboard with 1 multi-function CNC knob saves 25% desktop space vs full-size keyboard; side-engraved characters wear-resistant and non-fading, clear visual effect even in dark gaming environment. Equipped with a premium CNC metal knob—long press FN+Knob for 3s to switch between volume and lighting modes, rotate to adjust volume/backlight brightness, press to mute or cycle RGB lighting effects. The membrane key is quiet and comfortable, providing good tactile feedback.

【Rechargeable Wireless Keyboard and Mouse】4000mAh high-capacity keyboard battery (5-6h charging time) + 800mAh mouse battery (1-2h charging time); keyboard auto-standby in 2min/sleep in 15min, mouse auto-standby in 1min/sleep in 15min, low power consumption design. Red slow flash of keyboard connection light & mouse delay/light off prompt low battery. Please use original Type-C cable to charge via computer USB for 8 hours before using.

【Light Up Keyboard and Mouse】The K75 gaming keyboard can adjust RGB backlighting through multiple shortcuts (brightness/speed/effects optional), and FN + ESC restores factory settings. The gaming mouse with 13 RGB light effects (bottom RGB button switch), DPI button for 3s long press to turn light on/off, cool visual experience.

【High-Precision Optical Mouse & 5-Level Adjustable DPI】M75 optical sensor mouse with 7 functional buttons, 5-level DPI (800-1000(default)-1600-2400-4800) with color-coded light prompt (Red/Blue/Green/Purple/White); sensitive optical tracking ensures smooth, lag-free movement for gaming/office, accurate positioning without frame drop.

RedThunder K75&M75 Wireless Keyboard and Mouse Combo - Side-Engraved & Optical Sensing, Redefine Your Gaming/Office Experience RedThunder K75&M75 wireless keyboard and mouse combo is a perfect integration of compact design, high precision and personalized appearance, specially built for users who pursue durability, performance and visual beauty. The 75% compact layout retains all functional keys while abandoning redundant ones, saving massive desktop space; the side-engraved character design of the keyboard solves the problem of character fading of traditional front-engraved keyboards, and the optical sensor mouse ensures ultra-smooth tracking, making it an ideal choice for long-time gaming and office use. What’s more, we provide Gradient Gray and Contour White two color options, and rich RGB backlight effects, satisfying both practicality and aesthetics. Side-Engraved Keyboard & Optical Mouse, Double Upgrade of Durability and Precision The keyboard adopts wear-resistant side-engraved character technology, the characters are engraved on the side of the keycaps, which is not easy to wear and fade even after long-term frequent use, and the clear characters can be easily identified even in the dark RGB backlight environment, avoiding the trouble of unclear key identification. The M75 mouse is equipped with a high-sensitivity optical sensor, which has accurate positioning and smooth movement, no lag or frame drop during fast sliding, and the 5-level adjustable DPI (800-4800) can be freely switched according to gaming and office needs, with color-coded light prompt for each DPI gear, making gear switching clear at a glance. The mouse has 7 functional buttons, which can realize forward/backward and other quick operations, greatly improving operation efficiency. 3 Connection Modes & Dual System, Free Connection for All Scenarios This combo supports BT5.0/2.4G/wired three connection modes, realizing seamless switching between wireless and wired. 2.4G mode provides 10m unobstructed stable transmission, no signal interference, suitable for high-demand gaming scenarios; BT5.0 mode can connect 3 devices at the same time, and switch between different devices via Fn+1/2/3 with one key, perfect for multi-device office; wired mode can be used while charging, completely solving the anxiety of power shortage during long-time use. At the same time, the combo supports one-key switching between Windows and macOS systems, with blue backlight flash for Windows and yellow for macOS, clear confirmation of successful switching, compatible with most electronic devices on the market, no need to worry about system adaptation. Dual Color & Custom RGB, Personalized Desktop Decoration We launch two stylish and advanced color schemes: Gradient Gray and Contour White. The Gradient Gray is low-key and textured, suitable for a calm gaming/office style; the Contour White is fresh and bright, making the desktop more vivid. Both color schemes adopt a matte finish, which is anti-slip and anti-fingerprint, and feels comfortable to the touch. In addition, the keyboard is equipped with customizable RGB backlight, which can adjust the brightness, speed and effect at will, and restore the factory settings with one key via Fn+ESC; the unique CNC multi-function knob can switch between volume and lighting modes with a 3s long press, rotate to adjust volume/brightness, and press to mute/cycle light effects, realizing one-key quick operation. The mouse has 13 RGB light effects, which can be switched freely via the bottom RGB button, and the DPI button can turn on/off the light with a 3s long press, creating a personalized gaming atmosphere for you. Large Battery & Intelligent Power Saving, Long-Time Use Without Worry Equipped with a 4000mAh large-capacity rechargeable battery for the keyboard and an 800mAh battery for the mouse, the charging time is only 5-6h and 1-2h respectively. The built-in intelligent power saving system enables the keyboard to enter automatic standby after 2 minutes of inactivity and deep sleep after 15 minutes, and the mouse to enter automatic standby after 1 minute and deep sleep after 15 minutes, which greatly reduces power consumption and avoids frequent charging. When the battery is low, the keyboard's connection mode light flashes red slowly, and the mouse has obvious delay or light off, reminding you to charge in time. We recommend using a 5V DC charger (computer USB port is the best) for charging, which is safe and fast, and the original Type-C data cable supports stable data transmission and charging. All-in-One Design & Reliable Quality, Worry-Free After-Sales The keyboard and mouse share one 2.4G USB receiver, which is stored in the bottom of the mouse, easy to carry and store, and does not occupy extra USB ports of the device, making the desktop more tidy. The product has passed FCC and ISED certification, with stable performance, no harmful interference, and reliable quality. The keyboard weighs 710g and the mouse weighs 90g, with an ergonomic design, comfortable grip, and no fatigue even after long-term use. We provide a detailed user manual, and a perfect after-sales service system. If you have any problems with connection, charging, use and other aspects, you can contact our official customer service at any time, and we will solve your problems wholeheartedly. Package List: K75 Side-Engraved Keyboard1 + M75 Optical Mouse1 + 2.4G USB Receiver1 + Type-C Data Cable1 + User Manual*1Warm Reminder: Use 5V DC charger for charging, avoid high-voltage fast charging; clean with dry lint-free cloth regularly to keep the product clean and durable. 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