Product Information: 1. Connection: USB 2.3D photoelectricity wireless miniature mouse 3.Distinguishing rate: 800 (DPI) 4. Uses the human body engineering principle of design 5.requency 27MHz, enjoy your freely wireless space. 6.It has 256 ID code, there is no interference even many mice being used at the same time. 7.Automatically saving power sleeping function, battery life being prolonged. 8.Super mini build-in receiver, outstanding design. 9.Systems Compatibility: IBM PC and Win 95/98/Me/2000/XP. No need CD driver. 10.Please keep the effective working distance limits (range) within 0.6m-1m. Description of product XM-W02 Model number XM-W02 Product size Inner box 105*65*40mm/box Quantity/inner box 1pc Outer carton 47*41*20cm/100pcs/8.3kgs(no batteries),if with batteries,G.W.is 10.40kgs Quantity/outer carton 100pcs 20 /40 MOQ 500PCS