Lolanndic via Amazon offers the Etereauty Hair Straightening Brush for $35.99 $36.99. Coupon code "KHI7ZKHS" cuts that to $17.28 $17.76. With free shipping, that's $19 off and the lowest price we could find. It features auto-off, auto temperature lock, and a 360° swivel power cord. Deal ends July 31.