
Philips TAA5508
Score: 81/100
Technics EAH-AZ100
Score: 84/100Rankings

The Technics Reference Class Hi-Fi earbuds combine magnetic fluid drivers, full adaptive hybrid ANC and Dolby Atmos with head tracking for a premium audio experience. Their battery life falls to 10 hours with ANC on and they lack a companion EQ app, which may deter some power users. They are aimed at audiophiles and frequent travelers who prioritize sound fidelity and advanced features over ruggedness.

Philips TAA5508 sport earbuds combine hybrid ANC with wind cancellation, long 31-hour total battery life, and rapid 5-minute quick charge in an IPX5-rated design. The treble is less detailed and codec support is limited to LC3. They target active users needing reliable ANC and endurance.
| Attribute | ![]() | ![]() |
|---|---|---|
31 hoursbest | 28 hours | |
7 hours | 10 hoursbest | |
| ↓ lower better | 120 minutesbest | — |
8 mm | 10 mmbest | |
| ↓ lower better | 5 minutesbest | 15 minutes |
10 metersbest | 10 metersbest | |
| ↓ lower better | 80 gbest | — |
— | 6best |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Build & Design(1) | ||
IP Rating | IPX5 | IPX4 |
Battery & Power(3) | ||
Battery Life (Total with Case) (hours) | 31 hours | 28 hours |
Battery Life (Earbuds Only) (hours) | 7 hours | 10 hours |
Quick Charge Time (10 min boost) (minutes) | 5 minutes | 15 minutes |
Audio(3) | ||
Supported Audio Codecs | LC3 | LDAC |
Driver Size (mm) | 8 mm | 10 mm |
Microphone Count | 6 | |


Products in the top-left offer the best value (high score, low price).

Professional reviewers consider the TAA5508 a solid choice for sport-oriented users, praising its secure fit, adaptive ANC with wind-noise mitigation, strong battery life with quick charge, and clear call performance, while noting that the treble is not as refined as premium competitors.
Everyday users generally express high satisfaction, highlighting comfort, lasting battery, effective ANC during runs, and reliable water resistance, with occasional remarks about the need for sharper high-frequency detail.

Professional reviewers consistently commend the Technics EAH-AZ100 for its reference-grade magnetic fluid drivers, adaptive ANC that excels against low-frequency noise, and immersive Dolby Atmos with head tracking. They also praise the three-device multipoint Bluetooth and rapid charging. However, they note sound-signature quirks such as bass bleed into mids and a subdued treble, as well as inconsistent battery life reporting and only IPX4 water resistance.
Everyday users highlight the earbuds' comfortable fit, impressive Dolby Atmos immersion, and crystal-clear call quality as major positives. Recurring themes in consumer feedback include concerns about limited water resistance, occasional Bluetooth switching glitches, and battery life that may fall short of advertised figures during continuous ANC use.
“"they stayed securely in ears throughout the run with good bass response perfect for workouts"”


