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UINEER Global Flagship Store via Amazon [amazon.com] has Uineer Wireless Ergonomic Vertical Mouse w/ Tri-Mode Connectivity & 4 DPI Levels (Black) on sale for $26.99 – 50% off when you apply promo code A06500601 at checkout = $13.49. Shipping is free w/ Prime or on orders $35+.

Note: Amazon promo codes don’t always apply seamlessly. If you run into this issue, refresh the page, re-enter the code, or revisit the cart page.