Dragon Powerful X1Z 3 PCS Deluxe Suit Gaming Set. Mechanical Gaming Keyboard, Gaming Mouse, Gaming headphone   Keyboard: Connection: USB cable Backlight effect: six-color backlight Number of buttons: 104 keys Weight: approx 2.5 lbs Cable length: 1.6M Size:   17.6" x 7" x1.5"    Mouse: Connection: USB cable DPI: 1200/1600/2400/3200/ adjustable Backlight effect: breathing light / rainbow light Number of buttons: 7 keys Size: 5" x 3.11"   Headphones: Link: 3.5MM plug Power: 50mW Sensitivity: 105dB Weight: about 300 grams