2.4 GHz wireless connectivity works up to 30 ft (10 m) from the receiver. An LED indicator verifies connection to the laptop. HP Link-5 technology connects five HP-compatible devices through one nano receiver (included) .30-month battery life (1) HP Comfort Grip Wireless Mouse Size: 2.64 x 4.21 x 1.52 in.
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I thing HP HP Comfort Grip Wireless Mouse are seem as total top product in the market. As you can see popularity is high and also price 19.00 is very nice.