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Amazon
Mackie CR Series, Professional Fit Earphones High Performance with Mic and Control (CR-BUDS)
$13.19
WORLD of STEREO
Mackie CR-Buds In-Ear Headphones with In-Line Microphone & Remote (Black)
$19.99
Adorama
Mackie CR-Buds Single Dynamic Driver High Performance Earphones with Mic/Control
$14.99