http://www.cromaretail.com/Microsoft-Touch-Mouse-(Black)-pc-9345-580.aspx [align=center]Key features : [/align] Enhances windows 7 navigation Allows easy switching between tasks Uses gestures to quickly scroll and pan, navigate and manipulate content [align=center]GENERAL SPECIFICATIONS [/align]Brand Microsoft Buttons 3 Dimensions 4.37 / 2.32 inch Features 2.4 GHz Frequency, Nano Transceiver, 8000 fps Imaging Rate, 72 IPS Tracking Speed, 5 m Wireless Range, 2 Programmable Buttons, Programmable Double-tap Region within The Scrolling Region, 3000000 Actuations of Button Life, 40000 Cycles of Tail Mechanism Life, Power On and Off Interface Wireless Model Arc Touch OS Supported Windows: 7, Vista, XP (Excluding Windows XP 64-bit) Part Number RVF-00005 Power Supply 2 x AAA Battery Resolution 1000 DPI Technology BlueTrack Warranty 3 Years Microsoft India Warranty and Free Transit Insurance Weight 88 g [align=center]Price comparison : [/align] Indiatimes--3949 http://shopping.indiatimes.com/computer ... p_B1064843 Snapdeal--3649 http://www.snapdeal.com/product/microso ... ouch/97411 Flipkart : Rs.3600 http://www.flipkart.com/microsoft-arc-t ... g7swdahn4d Gadgetsguru : Rs.3599 http://www.gadgetsguru.com/microsoft-ar ... 13926.aspx Bitfang--3570 http://www.bitfang.com/microsoft-arc-to ... -pid41781/