Yangdock E-commerce via Amazon offers the Lumsing 20W 2-Port 5V USB Wall Charger in several colors (Blue pictured) for $11.99. Coupon code "KINDDEAL" drops it to $5.99. Plus, Prime members bag free shipping. That's the lowest price we could find by $2. This intelligent charger delivers up to 2.4 amps per port and features folding prongs. Deal ends May 21.