Gaming Wireless Keyboard and Mouse RGB Backlit Rechargeable Battery Gamer Combo Mechanical Feel Anti-ghosting with Side Button for PC Computer Laptop Compatible with Windows Mac Ps4/Ps5 Xbox one model:&&&&no model 30 days refund or replacement

30 days refund or replacement and 12 month warranty of the quality problem

(In USB mode

each keystroke produces a soft sound

4GHz RF cordless technology which is used with mature technology

Gaming Wireless Keyboard and Mouse RGB Backlit Rechargeable Battery Gamer Combo Mechanical Feel Anti-ghosting with Side Button for PC Computer Laptop Compatible with Windows Mac Ps4/Ps5 Xbox one model:&&&&no model 30 days refund or replacementGaming Keyboard and Mouse4 colors changeable backlit gaming keyboard with 4 grade adjust brightness and 3 breathing mode. The mouse has a built in 7 color cyclic gradual lighting effect,3 level of adjustable DPI (1200, 2400, 3200). There are manually permanent lighting mode, automatically manually breathing mode. PressingFn+ could get brightness increasing decreasing. 2. 4G Wireless Keyboard and MouseBoth wireless keyboard and mouse share one USB