
EarFun Free 2S
Score: 45/100
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 EarFun Free 2S delivers solid sound, long battery life and robust waterproofing at a budget price, but lacks ANC and suffers from occasional connectivity quirks.
| Attribute | ![]() | ![]() |
|---|---|---|
7 hours | 11 hoursbest | |
15 mbest | — | |
7 mm | 10 mmbest | |
20 Hzbest | 20 Hzbest | |
20,000 Hzbest | 20,000 Hzbest | |
40 mAhbest | — | |
100 dBbest | 100 dBbest | |
| ↓ lower better | 48 g | 5 gbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Audio(3) | ||
Driver Size (mm) | 7 mm | 10 mm |
Active Noise Cancellation | false | true |
Supported Codecs | aptX, AAC, SBC | SBC, AAC, aptX Adaptive, LDAC, LC3, LE Audio |
Connectivity(1) | ||
Bluetooth Version | 5.2 | 5.4 |
Build & Design(3) | ||
Weight (g) | 48 g | 5 g |
IP Rating | IPX7 | IPX5 |
Ear Tip Sizes | Multiple sizes (S, M, L) | S,M,L,additional |
Battery & Power(1) | ||
Battery Life (hours) | 7 hours | 11 hours |


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

Professional reviewers praise the Free 2S for delivering studio-neutral sound, impressive bass, and a feature set rarely seen at its price point, while noting the absence of ANC as the only major drawback.
Everyday users consistently commend the earbuds for their high-fidelity sound, long battery endurance, clear call quality and waterproofing, but many express frustration over missing ANC, occasional pairing hiccups and overly sensitive touch controls.

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.
“Sound quality rivals $100+ headphones”

“Battery lasts days”

“Calls are crystal clear”


