Between the Live Beam 3 and MW09, the Live Beam 3 comes out ahead in spatial audio and weight per bud, while the MW09 wins on battery — buds and driver size. Overall, the Live Beam 3 scores 76.1 and the MW09 scores 79.3 on our Mars Score.
Which should you buy?
The MW09 edges ahead on the Mars Score (76.1 vs 79.3), but the 3.2-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the Live Beam 3 if audio quality and feature breadth (ANC, codecs, multipoint) are the lead criteria for your purchase. The biggest gaps in its favor are spatial audio, weight per bud.
Pick the MW09 if your top frustration with your current device is running out of charge before the day ends — endurance is the lead spec here. Its strongest claims are battery — buds, driver size, water resistance.
Both ship with comparable battery — with case, active noise cancellation, multipoint, so those specs don't separate the two — focus on the differences below.
Bottom line: there is no wrong answer here — match the spec advantages to how you actually use the product. The Mars Score parity tells you both are well-rounded; the differences are about trade-offs, not quality.
Why JBL - Live Beam 3 wins
- ▲Has Spatial audio.
- ▲Weight per bud — 0.60 g less. 5.4 vs 6.
Why Master & Dynamic - MW09 wins
- ▲Battery — buds — 33.33% more. 16 h vs 12 h.
- ▲Driver size — 10.00% more. 11 mm vs 10 mm.
- ▲Water resistance: IP57 (vs IP55).
Spec comparison
Design
| Spec | JBL - Live Beam 3 | Master & Dynamic - MW09 |
|---|---|---|
| Form factor | stemlead | in-ear |
| Weight per bud | 5.4 glead | 6 g |
| Water resistanceⓘ | IP55 | IP57lead |
Audio
| Spec | JBL - Live Beam 3 | Master & Dynamic - MW09 |
|---|---|---|
| Driver sizeⓘ | 10 mm | 11 mmlead |
| Active noise cancellationⓘ | true | true |
| Transparency mode | true | true |
| Spatial audioⓘ | truelead | false |
Battery
| Spec | JBL - Live Beam 3 | Master & Dynamic - MW09 |
|---|---|---|
| Battery — buds | 12 h | 16 hlead |
| Battery — with case | 48 h | 48 h |
| Wireless case chargingⓘ | true | true |
Connectivity
| Spec | JBL - Live Beam 3 | Master & Dynamic - MW09 |
|---|---|---|
| Bluetoothⓘ | 5.3 | 5.4lead |
| Codecs | LE Audio,LC3,AAC,SBC | aptX Lossless,aptX Adaptive,AAC,SBC |
| Multipointⓘ | true | true |
| In-ear detection | true | true |
Frequently asked
Which has longer battery, Live Beam 3 or MW09?+
MW09 lasts 16h per charge vs 12h.
Do Live Beam 3 or MW09 support multipoint?+
Both support multipoint pairing.
Which has ANC, Live Beam 3 or MW09?+
Both have active noise cancellation.
Spec-level deep dives
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