S2 Open Ear Headphones - Ultra-Light Open-Ear Sports Headset

In this review of the S2 Open Ear Headphones the bottom line is simple: these are for active listeners who want clear high-resolution sound without isolating themselves from the environment. The S2 stands out for its 7g ultra-light hook-clip design that stays comfortable for hours, and for delivering deeper low end than typical open-ear models thanks to a dedicated BassDirect cavity and a 12mm driver. If you value situational awareness while commuting, running, or hiking, this headset offers an unusually good balance of fit, battery life and call clarity.

Key Features

• 7g ultra-light fit: The titanium filament and liquid silicone hook-clips conform to different ear shapes so the buds stay secure during movement without pressure on the ear canal.
• BassDirect 12mm driver: The driver and tuned cavity channel low-frequency energy into the ear for enhanced bass while keeping sound leakage low compared with other open-ear designs.
• Hi-Res LDAC audio: LDAC codec support means higher-resolution Bluetooth transmission for noticeably more detail and clarity with compatible devices.
• Triple water resistance: Angled wear, an independent cavity around the electronics and a nano-coated PCBA help repel sweat and improve durability during outdoor workouts.
• Long battery life: Around 8 hours per charge and up to 32 hours with the case give reliable all-day use and a 5-minute quick charge for an extra hour when needed.
• Clear calls and connectivity: Four-mic beamforming with AI noise cancellation and Bluetooth 6.0 with multipoint pairing keeps calls intelligible and lets the earbuds connect to two devices at once.

Who It's For

The S2 is best for runners, cyclists and commuters who need to stay aware of traffic and surroundings while enjoying better-than-average bass and hi-res streaming. Its light frame and hook-clip stability make it especially suitable for long outdoor sessions where in-ear isolation would be unsafe or uncomfortable.

Those who prioritize maximum passive noise isolation, or who want full over-ear noise cancellation for travel, should look elsewhere; while the S2 improves bass for an open-ear design, it is not a substitute for sealed in-ear or over-ear noise-cancelling headphones.

Pros & Cons

Pros

• Comfortable, barely-there 7g fit that adapts to many ear shapes.
• Surprisingly strong low end from the BassDirect cavity and 12mm driver for an open-ear product.
• Long combined playtime of up to 32 hours and fast 5-minute quick charge.
• Reliable call clarity from four-mic beamforming and AI noise cancellation.

Cons

• Open-ear design does not provide passive noise isolation, so loud environments reduce perceived bass and immersion.
• Hi-Res LDAC benefits require a compatible source device to notice the difference.

Specifications

Our Verdict

The S2 Open Ear Headphones are a strong choice for active users who need situational awareness without sacrificing sound quality. With an exceptionally light, secure fit, enhanced bass for an open-ear format, long battery life and clear calling, they deliver solid value for outdoor sports and daily commuting, provided you understand they are not meant to block ambient noise.

Frequently Asked Questions

Are these good for running in traffic?
Yes. The open-ear design preserves environmental awareness while the hook-clip fit keeps the buds stable during runs.

How long does the battery last with the case?
Expect about 8 hours per bud and up to 32 hours total when using the charging case.

Will I notice the LDAC advantage?
You will notice improved detail only when paired with a device and source material that support LDAC and hi-res streaming.