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UINEER Global Flagship Store via Amazon [amazon.com] has Uineer 3-Device Wireless Bluetooth Vertical Ergonomic Mouse w/ Side Scroll Wheel & 4-Level DPI on sale for $26.99 – 50% off when you apply promo code A06500811Q 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, try refreshing the page, re-entering the code, or checking after you select a payment method to confirm whether it already applied.