FREE UE 900S IEMs with Ultimate Ears PRO purchase with coupon (excludes UE 4 PRO)

A promotion featured prominently on the Ultimate Ears website says that you can get the Ultimate Ears UE900S IEMs for FREE when you purchase an Ultimate Ears PRO IEMs (excluding the UE 4 PRO). You get the UE900S for FREE by using coupon code Summer over there until 5/29/17.