Short answer: the Master & Dynamic MW07, though neither ranks well in its class. It ranks #1119 of 1291 in-ear headphones by sound quality, rated 2.3/5, at $156.75; the Sennheiser CX Plus True Wireless ranks #1138, rated 2.1/5, and costs $170.95, so there is not much of a tradeoff to weigh. Both are rated below 3.0/5 among the 1291 in-ear headphones, so if sound quality matters, consider the Truthear Nova instead, ranked #2 at $169.99.
The case for the Master & Dynamic MW07: These true wireless earbuds support aptX alongside SBC for better quality from compatible Android phones, and an IPX4 rating protects them against sweat and splashes. Watch for: Crinacle’s measurement gives it a preference score of 53, far from the balance most listeners prefer.
The Sennheiser CX Plus True Wireless is the longer-running option. Supports aptX and aptX Adaptive along with AAC and SBC, so it streams well from Qualcomm based Android phones. It is rated for 8 hours of battery against 3.5 for the Master & Dynamic MW07. It supports aptX Adaptive Bluetooth, which the Master & Dynamic MW07 lacks. The catch: An 11.4 dB treble peak near 10.2 kHz makes cymbals and sibilance sharp and fatiguing, while a 6.6 dB shortfall from 3 to 6 kHz hollows out vocals.
Buy the Master & Dynamic MW07. It is rated higher for sound quality than the Sennheiser CX Plus True Wireless and costs less, so it is the default pick unless a specific strength of the other one matters more to you.
Still deciding? The full Headphones rankings cover every ranked option.
These true wireless earbuds support aptX alongside SBC for better quality from compatible Android phones, and an IPX4 rating protects them against sweat and splashes.
Amazon $156.75 eBay
Supports aptX and aptX Adaptive along with AAC and SBC, so it streams well from Qualcomm based Android phones.
Amazon $170.95 eBayPrices on this page were last checked October 16, 2026 at 5:46 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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Specifications Side By Side
| Master & Dynamic MW07 | Sennheiser CX Plus True Wireless | |
|---|---|---|
| Price | $156.75 | $170.95 |
| Ranked | #1119 of 1291 in In-Ear Headphones | #1138 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 53 (measured by crinacle, via AutoEQ) | 51 (median of 1 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 3.61 dB standard deviation | 3.86 dB standard deviation |
| Tonal Tilt | -0.75 (negative is warmer, positive brighter) | -0.76 (negative is warmer, positive brighter) |
| Connection | True wireless | True wireless |
| Driver Type | Dynamic | Dynamic |
| Drivers | 1 x 10mm dynamic | 1 x 7mm dynamic |
| Active Noise Cancelling | No | Yes |
| Battery Life | 3.5 hours (14 with case, Manufacturer specified) | 8 hours (24 with case, Manufacturer specified) |
| Bluetooth Version | 4.2 | 5.2 |
| Bluetooth Codecs | SBC, aptX | SBC, AAC, aptX, aptX Adaptive |
| Built-in Microphone | Yes | Yes |
| IP Rating | IPX4 | IPX4 |
| Weight | 0 lbs (9 g) per earbud | 0 lbs (6 g) per earbud |
| Sub-bass Extension | - | Within 6 dB of target down to 20 Hz (-2.6 dB at 30 Hz) |
| Frequency Response | - | 5Hz - 21kHz (Manufacturer specified) |
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