Sony is bringing back the simplicity of plug-and-play audio with the IER-EX15C, a pair of wired USB-C earbuds built for eco-conscious listeners. Instead of relying on lithium-ion batteries, these earbuds draw power directly from your device. That means zero charging, no downtime, and fewer batteries heading to landfills.
Why it matters: Traditional lithium-ion cells require intensive mining and water use, and they’re notoriously difficult to recycle at scale. By eliminating the battery altogether, the IER-EX15C helps reduce toxic waste while delivering consistent, reliable sound anywhere your device can power them.
Designed for everyday use, the IER-EX15C features an inline multifunction button and an omnidirectional microphone for clear calls and quick control over music and playback. The 1.2 m (3.9 ft) textured cable resists tangles and includes a cable slider to tidy up extra slack. Three sizes of silicone eartips (XS, M, XL) help dial in a comfortable, secure fit. Inside, compact 5 mm drivers cover a wide 20 Hz–20,000 Hz frequency range for balanced listening across podcasts, calls, and playlists.
Key highlights:
– Battery-free, USB-C wired design for sustainable, hassle-free listening
– Inline mic and controls for calls and media
– 1.2 m textured cable with adjustable slider
– 5 mm drivers; 20 Hz–20,000 Hz frequency response
– Three eartip sizes included
– Works with phones, tablets, and laptops that support USB-C audio
Price and availability: The Sony IER-EX15C has an MSRP of $29.99 and is available now in the US in black, blue, pink, and white. A Japan release is scheduled for October 10, 2025.
If you want affordable USB-C earbuds with a mic, skip the charging anxiety and choose a battery-free option that also lowers environmental impact. Plug in, press play, and go.
