GoldenGadgets.com offers the Ring-Style Fingertip USB Optical Mouse for $5.90. Apply coupon code "GGFA15" to drop it to $5.01. With free shipping, that's the lowest total price we could find by a buck. This device attaches to your finger and gives you mouse-like control of your computer. It features two buttons and a scroll wheel.
How To: Buy a Pokemon Go Plus
Expect this item to take up to three weeks to arrive.
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