Audio-Technica's latest in-ear headphones are its ATH-CKX9iS SonicFuel ($100), a hybrid design that wraps silicone rubber around large 13.5mm drivers. They're designed for active use, with rubber stabilizers and ear tips; three sizes of stabilizers are included, along with four standard ear tips and one set of Comply foam tips. A microphone and remote with a volume slider are found on the cabling, and the headphones come with a zippered carrying case.
