ForPower-US via Amazon offers Prime members the aLLreli Laser Gaming Mouse, model no. M811Lu, for $27.99. Coupon code "Z6QGT9IE" cuts it to $19.59. Plus, Prime members bag free shipping. (Non-members can spend $35 or more to qualify for free shipping; otherwise, it adds $8.28.) That's $70 off list and the lowest total price we could find. It features eight programmable buttons, five user profiles, six DPI sensitivity modes, and LED lighting.