1more Open Earbuds S70 Black Wireless In-ear headphones

Open-Ear Comfort with Studio-Tuned Sound

The 1MORE Fit Open Earbuds S70 in Black are open-ear true wireless earbuds that keep you aware of your surroundings. Rather than sealing the ear canal, this model rests just outside it, keeping traffic and conversations audible. Each earbud weighs 8.9 g and pairs a memory titanium alloy core with skin-friendly liquid silicone. Bluetooth 5.3 with AAC and SBC codecs keeps the connection stable.

What Sets the S70 Apart

What makes this model stand out is its 1MORE Acoustic Engine pairing dual magnetic circuit drivers with DiamondFlex diaphragms for louder output than typical open-ear designs. A real-time bass enhancement DSP adds depth that open-ear headphones usually struggle to reproduce, while Grammy-winning engineer Luca Bignardi tuned the final voicing. Four AI ENC microphones suppress ambient noise during calls.

Specs That Matter for Open-Ear Listening

Open-ear headphones live or die by comfort, battery life, and weather resistance — the S70 addresses all three.

• Earbud Weight: 8.9 g per side — light enough for multi-hour sessions without ear fatigue
• Frame Material — a memory titanium alloy core wrapped in skin-friendly liquid silicone keeps the hook flexible and comfortable against the skin
• Battery: 60 mAh per earbud, 575 mAh case — 12 hours single-charge, 40 hours total with case (AAC, 50% volume)
• Fast Charge: 5 minutes = 2 hours of playback
• Water Resistance: IPX5 — handles sweat and rain, though the charging case is not waterproof
• Connectivity: Bluetooth 5.3 with AAC/SBC codecs and a low-latency mode for gaming and video

Built for Active Listeners Who Want Awareness

These open earbuds are the right choice for runners, cyclists, and outdoor professionals who need to hear their surroundings while enjoying music or podcasts. Anyone who finds traditional in-ear tips uncomfortable will appreciate the open-ear hook design that avoids the ear canal entirely. The IPX5 rating and 40-hour total battery make this model practical for daily commutes, gym sessions, and travel.

1MORE's Decade of Open-Ear Research

1MORE's Ergonomics Laboratory has spent ten years refining open-ear fit through advanced measurement, and the S70 reflects that accumulated expertise. The brand pairs that research with Grammy-winning tuning — Luca Bignardi's involvement brings studio-grade voicing to a consumer price point.