
Technics EAHAZ40M2EK
Score: 78/100
EarFun Air Pro 4
Score: 87/100Rankings

EarFun Air Pro 4 delivers high-resolution audio, strong adaptive ANC, and a long-lasting battery in a budget-friendly package. Its lightweight design, fast charging, and extensive codec support make it a compelling choice, though the build feels plastic and latency may bother serious gamers.

The Technics EAH-AZ40M2 offers audiophile-grade sound with LDAC support, effective dual-hybrid ANC, and seamless multipoint connectivity, all packaged in a lightweight, eco-friendly design. Battery life is modest, especially when using LDAC, and the case lacks a charge indicator.
| Attribute | ![]() | ![]() |
|---|---|---|
5.5 hours | 11 hoursbest | |
10 mbest | — | |
6.35 mm | 10 mmbest | |
— | 20 Hzbest | |
— | 20,000 Hzbest | |
— | 100 dBbest | |
| ↓ lower better | 5 gbest | 5 gbest |
12 months | 18 monthsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Audio(2) | ||
Driver Size (mm) | 6.35 mm | 10 mm |
Supported Codecs | SBC, AAC, LDAC | SBC, AAC, aptX Adaptive, LDAC, LC3, LE Audio |
Connectivity(1) | ||
Bluetooth Version | 5.2 | 5.4 |
Warranty(1) | ||
Warranty Period (months) | 12 months | 18 months |
Build & Design(2) | ||
IP Rating | IPX4 | IPX5 |
Ear Tip Sizes | XS,S,M,L | S,M,L,additional |
Battery & Power(1) | ||
Battery Life (hours) | 5.5 hours | 11 hours |


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

Professional reviewers praise the EAH-AZ40M2 for its authentic Technics sound signature, effective dual-hybrid ANC, and industry-leading three-device multipoint connectivity.
Everyday users highlight crystal-clear call quality, easy device switching, and balanced sound, while noting reduced battery life with LDAC and missing auto-pause features.

Professional reviewers consistently highlight the Air Pro 4's impressive value proposition, noting its strong sound signature, solid ANC for the price point and the inclusion of high-res codecs and Auracast. While the earbuds deliver a feature-rich experience, critics point out that the latency isn't low enough for competitive gaming and the ANC falls short of flagship models on higher frequencies.
Everyday users love the long battery life, punchy bass and reliable ANC for travel, as well as the clear call quality and the novelty of Auracast in public spaces. Common frustrations revolve around the lack of on-ear volume controls, a somewhat finicky companion app, occasional over-sensitive touch inputs, and a case that feels a bit large for pocket storage.
“Crystal-clear calls”

“Seamless device switching”

“Natural, balanced sound”


