MARVO WS005 Wireless 2.4Ghz Keyboard and mouse Combo

2.4 GHz Wireless Combo: Keyboard specification(1*AAA Battery, Battery Not Included) Size:450*135*30 MM Weight: 435g Supply voltage: 1.5 V DC 4 D mouse(1*AA Battery, Battery Not Included) Solution: Hantianxia +8650 Product size: 115*63*38mm Product weight: 80g DPI:800/1200/1600 Key life: 3 million times Effective transmission distance: 10M