USE RECHARGE COUPONS http://www.ebay.in/itm/Zebronics-Br...SB-Mouse-Combo-Model-JUDWAA-500-/190816834796 ZEBRONICSPS2 KEYBOARD AND USB MOUSE COMBOSPECIFICATIONS: Keyboard: Dimension : 45x14.8x2.1cm(LxWxH) Keys : 104 Regular keys Interface : PS2 Compatible with : Windows 98/2000/XP/Vista/7 Mouse: Dimension : 10.3x5.8x3.7cm(LxWxH) Tracking method : Optical Resolution : 800/1600DPI Interface : USB Buttons : 4 Power consumption : 5V DC up to 30mA Operating system supported : Windows 98 / 2000 / XP / VISTA/ Windows 7