TREBLAB Sports Series X-Open
The open-ear design with 14.2mm drivers delivers situational awareness without sacrificing audio presence, backed by a 40-hour battery life. Its lightweight, behind-ear fit and dual-mic calling system make it a practical choice for all-day wear. This headset is best for users who need to remain alert to their environment during long listening sessions, such as office workers or outdoor runners.
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Snapshot
The 30-Second Version
The TREBLAB X-Open nails build quality at the 97th percentile and keeps you aware of your surroundings with its open-ear design. Battery life is a weak spot at the 19th percentile, and calls are rough at 28.8 out of 100. Worth buying if you prioritize comfort, durability, and situational awareness over battery and call performance.
Pros & Cons
Pros
- Build quality is top-tier, 97th percentile in our database 97th
- Bluetooth 5.4 pairs fast and holds a stable connection 88th
- Lightweight at 8.9g per earbud with secure ear hooks 82nd
- IPX5 water resistance handles sweat and rain without drama 67th
Cons
- Battery life lands in the 19th percentile, well below average
- Call quality is the weakest area at 28.8 out of 100
- Sound is middle of the pack, nothing that'll wow you
- No active noise cancellation, just transparency mode
What owners think
The Word on the Street
How owner sentiment changed over time
ExclusiveBased on when customers actually wrote their reviews - so you can see whether early praise held up.
Based on 5 dated customer reviews, grouped by calendar quarter. Period analysis is in English.
The proof
Performance
The 14.2mm dynamic drivers deliver sound that lands right in the middle of the pack, 50th percentile. Nothing spectacular, nothing offensive. Bass is present and clear per user feedback, but don't expect audiophile detail. Bluetooth 5.4 connectivity is a bright spot at the 82nd percentile, pairing fast and staying stable. The dual mics are fine for casual calls but struggle in noisy environments, which explains that 28.8 calls score. Battery life is the real sore thumb: 10 hours per charge plus 30 in the case sounds decent on paper, but against competitors it's near the bottom of our database.
Specifications
Full Specifications
Design
| Form Factor | on-ear |
| Open/Closed | open |
| Weight | 0.1 kg / 0.1 lbs |
| Ear Cushion | Kunststoff |
Audio
| Driver Type | dynamic |
| Driver Size | 14.2 |
| Freq Min | 20 |
| Freq Max | 20000 |
| Impedance | 24 |
| Sensitivity | 124 |
| Codecs | TREBLAB X-Open - True Open Ear Wireless Earbuds, Lightweight Comfort, Behind-Ear Fit, Immersive Sound, Dual Mic for Calls, 40H Playtime, Bluetooth Headphones Open Ear for Sports, Workout, Running |
Noise Control
| ANC | No |
| Transparency | Yes |
Connectivity
| Wireless | Yes |
| Bluetooth | 5.4 |
| Wired Connector | USB-C |
| Cable Length | 0.91 |
| Range | 10 |
Battery
| Battery Life | 10 |
| Charge Time | 1 |
| Fast Charging | up to 10 hours playtime, plus an extra 30 hours with the charging case |
| Charging | USB-C |
Microphone
| Microphone | Yes |
| Mic Count | 2 |
Features
| Voice Assistant | Siri, Google Assistant |
| Water Resistance | IPX5 |
vs Competition
Against the Sony ULT WEAR and JBL Tune 670NC, the X-Open gives up noise cancellation entirely. Those competitors offer ANC, which the X-Open lacks. The TOZO HT3 undercuts it on price while offering similar build quality. The Beyerdynamic Aventho and Sennheiser ACCENTUM Plus blow it away on sound and battery, but they cost significantly more. Where the X-Open wins is build quality and the open-ear form factor, which none of those competitors offer. If staying aware of your surroundings matters more than isolation, this is your lane.
| Spec | TREBLAB Sports Series X-Open | Sennheiser HDB 630 | Bowers & Wilkins Px8 S2 | Sony WH-1000XM6 | JBL Tune 670NC | TOZO HT3 |
|---|---|---|---|---|---|---|
| Form Factor | on-ear | over-ear | over-ear | over-ear | on-ear | over-ear |
| Driver Type | dynamic | dynamic | dynamic | dynamic | dynamic | dynamic |
| Driver Size (mm) | 14.199999809265137 | 42 | 40 | 30 | 32 | 40 |
| Impedance Ohms | 24 | 480 | - | 48 | 32 | 16 |
| Wireless | true | true | true | true | true | true |
| Active Noise Cancellation | false | true | true | true | true | true |
| Open Closed Back | open | closed | closed | closed | closed | closed |
| Bluetooth Version | 5.4 | 5.2 | 5.3 | 5.3 | 5.3 | 6.0 |
| Battery Life Hours | 10 | 60 | 30 | 30 | 70 | 90 |
| Compare | Compare | Compare | Compare | Compare |
| Product | Anc | Mic | Build | Sound | Battery | Comfort | User Sentiment | Connectivity | Social Proof |
|---|---|---|---|---|---|---|---|---|---|
| TREBLAB Sports Series X-Open | 66.4 | 56.1 | 97.2 | 50.1 | 19.5 | 67.3 | 87.6 | 82.3 | 51 |
| Sennheiser HDB 630 Compare | 98.2 | 82.7 | 75.7 | 98.1 | 91.3 | 44.5 | 87.6 | 98.4 | 95.1 |
| Bowers & Wilkins Px8 S2 Compare | 98.2 | 99.3 | 94.3 | 99 | 76.5 | 52 | 81.8 | 97.7 | 95.1 |
| Sony WH-1000XM6 Compare | 98.2 | 89.4 | 90.8 | 91 | 76.5 | 80 | 21.7 | 99.9 | 83.6 |
| JBL Tune 670NC Compare | 98.2 | 64.1 | 75.7 | 84.9 | 94.3 | 87.1 | 81.8 | 99.2 | 98.7 |
| TOZO HT3 Compare | 89.8 | 82.7 | 94.3 | 98.6 | 97.8 | 52 | 96.4 | 96.8 | 95.1 |
Price
Value & Pricing
At USD 50 to USD 70 across three US listings, the X-Open sits in budget territory. Best Buy shows the lowest everyday price in that range, so start there if you're buying. For the build quality alone, this feels like a steal. But the battery and call performance drag the overall value down. You're paying for a well-built, comfortable open-ear bud with solid connectivity, not a feature-packed powerhouse. If that's what you want, the price is fair.
Price History
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Overview
The TREBLAB X-Open takes the open-ear concept and runs with it. You get 14.2mm drivers pumping sound into your ears without sealing them off, so you stay aware of traffic, gym chatter, or whatever's happening around you. Build quality is a genuine standout here, landing in the 97th percentile of our database. That's rare at this price point.
But there's a catch. The battery life sits in the 19th percentile, which is rough for a product marketed toward all-day wear. And the calls score is the weakest area at 28.8 out of 100. So if you're planning marathon phone sessions, keep reading.
Common Questions
Q: Can I wear these while running without them falling out?
Yes, the behind-ear hooks and 8.9g per earbud weight keep them secure during intense movement. The IPX5 rating also means sweat won't damage them.
Q: How long does the battery actually last?
You get up to 10 hours per charge, with an extra 30 hours from the charging case. That's below average for this category, so heavy users will charge more often.
Q: Will I be able to hear traffic and people around me?
Yes, the open-ear design intentionally lets ambient sound in. There's no ANC, just transparency mode, so you'll stay aware of your surroundings at all times.
Who Should Skip This
Skip the X-Open if you take frequent calls or need earbuds that last through a full workday without topping up. The 28.8 calls score and 19th percentile battery life will frustrate you. Also skip if you want noise isolation, since the open design lets everything in by design. Look at the Sony ULT WEAR or JBL Tune 670NC if ANC matters.
Verdict
Buy the TREBLAB X-Open if you want open-ear awareness during workouts or commutes and you value build quality over everything else. The ear hooks keep them locked in place, the IPX5 rating shrugs off sweat, and the sound is good enough for podcasts and casual listening. Skip them if you need long battery life or make a lot of calls. For the right person, these are a solid budget pick.