Logitech Wireless Mouse M525 (Green/Gold) for $9.99 after this $10 rebate.  Here is a screenshot for your reference.  It features micro-precise scroll wheel, ergonomically shaped, three year battery life, Logitech Unifying receiver, Logitech Advanced 2.4 GHz wireless, and Logitech Advanced Optical Technology.  Most places have it for about $19 and more.