Amazon offers its Prime members the MEElectronics RX12 In-Ear Headphones
in Blue, model no. EP-RX12-BL-MEE, for $6.98
with free shipping
. (Non-members can spend $25 or more to qualify for free shipping; otherwise it adds $5.74.) That's the lowest total price we could find by $4. Sales tax is added where applicable. They feature 10mm drivers, 20Hz to 20kHz frequency response, 3.5mm plug, and 4-foot cord.