16-Hour Battery Life
Provides up to 16 hours of battery life for extended listening.
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Updated 4 months ago
Premium earbuds with sapphire glass, Kevlar construction, and extended battery life.

Provides up to 16 hours of battery life for extended listening.
Includes noise cancellation for a more focused listening experience.
Features sapphire glass and Kevlar construction as described by the manufacturer.
Master & Dynamic MW09 are Bluetooth true wireless in-ear earphones with 11 mm drivers, noise cancellation, a built-in microphone, and 16-hour battery life.
The reviewers noted the earbuds feature premium materials and long battery life, presenting them as a luxury accessory, though they come at a high price point.
The review highlights the earbuds as a successful return, awarding high marks for sound quality and overall performance.
The publication praises the exquisite design, detailed sound, and excellent battery life, though notes they are pricey and benefit from minor EQ adjustments.
The review describes the earbuds as offering robust, customizable sound and impressive features, while concluding that competitors provide better performance for lower prices.
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| Attribute | Specification | Notes |
|---|---|---|
| Battery Life | 16 hours | hours |
| Bluetooth Version | 5.4 | |
| Charging Time | 1 hours | hours |
| Connectivity | wireless | |
| Connectivity Type | bluetooth | |
| Driver Size | 11 mm | mm |
| Form Factor | true_wireless_earbuds | |
| Frequency Response | 20Hz to 20kHz | |
| Headphone Type | true_wireless | |
| Microphone Included | Yes | |
| Noise Cancellation | Yes | |
| Product Type | in-ear true wireless earphones | |
| Water Resistance Rating | IP54 (earphones) / IPX4 (charging case) | |
| Weight | 8.1 g | g |
| Wireless Technology | bluetooth |

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