JLab Flex EFLEXRBLK124
Its open-ear clip-on design delivers 21-hour total battery life and 12mm drivers for booming open sound without blocking ambient noise. Multipoint Bluetooth 5.3 effortlessly switches between two devices, and the JLab App provides custom EQ for the lightweight 59-gram build. This makes it ideal for runners, cyclists, and desk workers who need all-day awareness during calls and music.
Snapshot
Pros & Cons
Pros
- Strong connectivity (91st percentile) 91st
- Strong mic (83rd percentile) 83rd
- Strong build (72nd percentile) 72nd
- Strong comfort (72nd percentile) 72nd
Cons
- Below average battery (17th percentile)
- Below average anc (32nd percentile)
What owners think
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 200 dated customer reviews, grouped by calendar quarter. Period analysis is in English.
The proof
Performance
Specifications
Full Specifications
Design
| Form Factor | open-ear |
| Wearing Style | clip on |
| Weight | 0.1 kg / 0.1 lbs |
Audio
| Driver Size | 12 |
| Freq Min | 20 |
| Freq Max | 20000 |
| Impedance | 12 |
Connectivity
| Wireless | Yes |
| Bluetooth | 5.3 |
| Multipoint | Yes |
Earbud Battery
| Battery Life | 6 |
| Charge Time | 2 |
| Charging | USB-C |
Case Battery
| Case Battery | 21 |
| Case Charging | USB-C |
Microphone
| Microphone | Yes |
| Mic Count | 2 |
| NC Mic | Yes |
Features
| Touch Controls | Yes |
| App | JLab App |
| Water Resistance | Water-Resistant |
vs Competition
| Spec | JLab Flex EFLEXRBLK124 | Technics EAH-AZ100 EAH-AZ100-K | Bose QuietComfort Ultra 896637-0010 | Sony WF-1000XM6 | JBL Live Beam JBLLIVEBEAM3SILAM | EarFun Air Pro TW230B |
|---|---|---|---|---|---|---|
| Form Factor | open-ear | in-ear | in-ear | in-ear | in-ear | in-ear |
| Driver Type | - | dynamic | dynamic | dynamic | dynamic | dynamic |
| Wireless | true | true | true | true | true | true |
| Active Noise Cancellation | - | true | true | true | true | true |
| Bluetooth Version | 5.3 | 5.3 | 5.3 | 5.3 | 5.3 | 5.4 |
| Battery Life Hours | 6 | 8 | 6 | 8 | 12 | 9.5 |
| Case Battery Hours | 21 | 28 | 18 | 24 | 36 | 40 |
| Water Resistance | Water-Resistant | IPX4 | IPX4 | IPX4 | IP55 | IP55 |
| Multipoint | true | true | true | true | true | true |
| Compare | Compare | Compare | Compare | Compare |
| Product | Anc | Mic | Build | Sound | Battery | Comfort | Connectivity | Social Proof |
|---|---|---|---|---|---|---|---|---|
| JLab Flex EFLEXRBLK124 | 31.6 | 82.6 | 72.4 | 55.7 | 17.3 | 71.6 | 91 | 65.6 |
| Technics EAH-AZ100 EAH-AZ100-K Compare | 97.3 | 97.2 | 80.7 | 99 | 81.6 | 71.6 | 99.1 | 80.3 |
| Bose QuietComfort Ultra 896637-0010 Compare | 97.3 | 91.2 | 80.7 | 96.7 | 47.1 | 94.2 | 97.9 | 89.6 |
| Sony WF-1000XM6 Compare | 97.3 | 99.8 | 80.7 | 88.6 | 78.4 | 71.6 | 97.9 | 80.3 |
| JBL Live Beam JBLLIVEBEAM3SILAM Compare | 97.3 | 97.2 | 91.8 | 81.9 | 90.8 | 71.6 | 96.2 | 89.6 |
| EarFun Air Pro TW230B Compare | 90.1 | 97.2 | 91.8 | 89.3 | 87.9 | 71.6 | 93.2 | 89.6 |
Price
Value & Pricing
Amazon.com.mx 1 offer From MX$1,175
We started tracking prices for this product on May 30, 2026. The chart appears once we have more data.
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
