(名詞) 耳掛或耳戴式小型電腦或電子裝置。亦寫成 hear-able。cf. wearable (穿戴式電腦或電子裝置)。

Smart ear devices, or "hearables," are the new horizon in the wearable space and for good reason. Current wearables — fitness wristbands, heart rate straps, even Google Glass — tend to be novelty-based and require convincing consumers to put something new on their body. Alternatively, ear devices have the potential to make a lasting impact in the wearable space.
—Stephen Brown, "Wearable fatigue? Stick it in your ear," Wired, October 1, 2014

And finally, getting back to the ear, LeBoeuf said we may someday soon have "hearables": in-ear devices that provide private, intelligent communication along with super-accurate biometric measurements.
—Carol Mangis, "Will wearables be 'hearables'?," Consumer Reports, January 5, 2015