Model: SC-SG-MU820 Type: USB Hub mouse Connection type: Wired Interface: USB Cable length: 0.8M Battery: none Sensor：Pixart Resolution: 800DPI Button NO.: 3 ButtonSize: 80*43*26mm Weight: Color: Optional color MOQ: 3000PCS Overprint logo：can Processing customization：can Features: * HUB Size: 120*62mm. * Own tooling, Patent design. * Retractable cable, suit for notebook User. * USB 1.1 and USB 2.0 can be accepted. * Notebook mouse, with a retractable cable, and built in 2-port USB hub. * Optical technology works well on most surfaces. * Scroll and zoom easily with the mouse wheel. * System : Windows 9X/2000/XP/ME/NT4.0/Vista/7/8 for 32/64Bit. Detail price or more information ,pls contact me (sale manager :Candy ) Email address :sale01@scivas.com Skype ID : plastic-card