Newegg offers the JBL Synchros S300 On-Ear Headphones for iOS, model no. SYNOE300IBNU for $49.99. This $20 mail-in rebate cuts it to $29.99. With free shipping, that's $10 under our May mention in another color and the lowest total price we could find by $30. They feature 40mm drivers, a universal mic cable with three buttons, frequency response of 10Hz to 22kHz, detachable cable with Apple 3-button mic/remote cable, and zippered carrying case.
Of note the Android model is available for $29.99 via this $20 mail-in rebate with free shipping. That's a price low by $23, although we saw it for $10 less last month. Both deals end July 24.