MOUSE Four gears of mouse adjustment(800-1200-1600-2400DPI) Ergonomic design, with anti-slipping surface, it fits perfectly to palms KEYBOARD 19 anti-ghosting keys, enable free control 10 standard multimedia keys. HEADPHONE High magnetic 40mm speaker, with strong sounding quality Retractable design of the headband fits different sizes of head shapes MOUSEPAD Anti-slip rubber base effectively keeps the mouse pad from slipping. Premium fine-mesh cloth surface, allowing your mouse move smoothly/accurately.