<p><b>K680 Wireless Rechargeable Keyboard and Mouse Combo Removable hand rest</b> is born for Gaming. The High Performance ensure you faster and stronger during every competition. The ergonomic design makes you more comfortable during long time gaming. <br> <br> <b>Keyboard Specifications:</b><br> ① Normal Keys: 104<br> ② Keyboard Dimensions: about 455*175*45mm<br> ③Interface Type: Usb （2.4GHz wireless connection）<br> ④Built-in battery capacity：3000mAh<br> ⑤ System Support: Windows 7 / 8 / 10 / Vista / XP / Mac OS / Linux and Latest<br> ⑥Light effects: Rainbow LED backlit<br> FN DEL: Three backlight state switches (Standard Light - Breathing Light - OFF)<br> FN + ↑/↓: Enhance/reduce backlight brightness <br> FN + ←/→: Speed up / Slow Down the backlight of breathing light speed<br> <br> <b>Mouse Features:</b><br> ① Mouse Dimensions:125*65*40mm<br> ② Customize DPI Switch: 800/1200/1600/2400DPI. <br> ③ Built-in battery capacity: 800mAh<br> ④ Light effects: Seven color breathing lights (Mouse backlight color Can Not be adjusted)<br> ⑤ Buttons: 6 buttons with scroll wheel (Two Side-Buttons, One DPI Switch)<br> <br> <b>Note:</b><br> 1. Before the keyboard is used, turn the switch on the side of the keyboard and the bottom of the mouse to the ON position.<br> 2, The keyboard and mouse share a receiver, the receiver is at the bottom of the mouse<br> 3. When the mouse snake head light is dimmed or off, you need to charge the mouse.<br> When the LOCK light on the keyboard is flashing, you need to charge the keyboard.<br> 4.The keyboard and mouse are charged using a DC power supply of 5V.<br> <br> <b>Packing Included:</b> <br> 1x Gaming Keyboard and Mouse Set (Retail Package) <br> 1x Charging Cable<br> 1x Removable Hand Rest<br> 1x Instruction User Manual</p>