Beeebo-us via Amazon offers the Dodocool 10-watt Qi Wireless Charging Pad for $15.99. Coupon code "9D54K6QE" cuts that to $10.07. Plus, Prime members bag free shipping. That's $3 under last month's mention, $6 off, and the lowest price we could find. It features a 3-foot USB-C cable and two charging modes for QI-compatible devices: 10-watt fast-charge for Samsung Galaxy phones and 5-watt standard charge for the iPhone X and iPhone 8/8 Plus. Deal ends May 20.