Massive 4000mAh Battery, Months of Use: Equipped with a 4000mAh rechargeable battery, this wireless keyboard provides up to 1,000 hours of use (backlight off) or 110 hours (backlight on). Smart auto-sleep kicks in after 2 minutes of inactivity to maximize power, ensuring you spend more time working and less time charging Silent Volcano Keys & Fade-Resistant Legends: Low-profile volcano key structure is designed to reduce typing noise while maintaining consistent key response. UV-coated legends resist fading, helping the keys remain clear and readable after long-term use Ergonomic Palm Rest & 7° Tilt: Wide wrist support provides 20% more palm coverage than standard keyboards, helping reduce wrist pressure during long typing sessions. Foldable 7° tilt legs support a more natural typing angle for office and programming work Customizable RGB & Rainbow Backlight: Includes 5 lighting effects, 10 backlight colors, and 5 brightness levels, with dedicated keys for quick adjustment or turning the backlight off. Suitable for low-light work environments or evening use Phone Holder Slot & Stable Dual Connectivity: Built-in slot supports mobile devices for video calls or multitasking. The 2.4G wireless 2-in-1 USB-A/Type-C receiver delivers a stable 33 ft connection with Windows, PC, Laptop, and Chromebook. (Some shortcut keys may have limited function on macOS.)