EarFun Free Pro 3: problems, parts and running costs

Checked: 2026-10-17

Summary

The dominant complaint is weak noise cancelling: EarFun rates it at up to 43 dB, but SoundGuys measured 10–30 dB of attenuation and reviewers call it poor. Temperamental touch controls, an ear-shape-dependent fit, a battery that fell short of the 7.5 h claim in one lab test and a finicky laptop microphone round out the cautions. There is no subscription and nothing to replace on a schedule, so the yearly running cost is effectively zero beyond electricity. It is a strong buy under $40 — a documented promo brought it to $28 — fair value at the $79.99 list price, and weak above $100. [1][3][13]

Common problems and fixes

Transparency mode hisses and sounds muffled — SoundGuys report audible hiss in quiet rooms and a muffled passthrough, and Firstpost lists transparency mode as needing improvement. Switch back to ANC or Normal mode when you do not need to hear your surroundings. [1][6]
Controls quirks — touch controls are called temperamental by TechRadar and misbehave according to Firstpost, and there are no wear sensors, so nothing auto-pauses when you take a bud out. Remap the gestures in the EarFun Audio app and pause manually. [2][6]
Fit depends on ear shape — TechRadar had the buds fall out repeatedly in testing, while Firstpost and SoundGuys found decent-to-good fits. The box includes XS–XL silicone tips, three ear-fin sizes and one memory foam pair, so experiment before judging stability. [1][2][6]
Battery falls short of the claim in lab testing — the official figures are 7.5 h per bud with ANC off and 6 h with ANC on; TechHive found the 6 h ANC-on figure accurate, but SoundGuys’ standardized benchmark measured 4 h 58 min. Expect somewhere between the claim and the lab result. [1][12][15]
Microphone is finicky on laptops — Android Central found the mic problematic on laptops while clean on phones, and a firmware update did not fully fix it. Phone calls are the reliable case. [11]
Charging contacts ship with insulating films — new buds have insulating films on the charging contacts that must be removed before first use, and the manual says to dry the earbuds, contacts and USB port completely before charging. [15]

Parts and consumables

USB-A to USB-C cable — included; a spare is the only likely extra purchase, since the case also charges wirelessly. [12][15]
Batteries — no case capacity in mAh was published in any source found, there are no user-serviceable parts and no repairability analysis exists, so an aged battery ends as a replacement event rather than a repair. [1][15]

Yearly running cost

Not enough data to total. There is no subscription, no proprietary consumable and nothing to replace on a schedule; the firmware and the EarFun Audio app are free, and no owner-reported electricity figure exists. The only real costs are eventual aftermarket ear tips and a replacement set once the cells age, neither with a verified price, so the annual total is effectively zero. [1][11][15]

When it is a good buy

The launch MSRP is $79.99 (2023); CNET reported the buds typically list for $96 and documented an October 2025 promo on EarFun’s own site that brought them to $28 [13]. Under $40 it is a strong buy if noise cancelling is not a priority, and the $28 sale shows that is achievable. From $40 to $80 it is fair value once you accept weak ANC, temperamental touch controls and a fit that depends on your ears. From $80 to $100 value diminishes, and above $100 the alternatives get much stronger. Named alternatives: SoundGuys points to the Anker Soundcore Liberty 4 NC at $99.99 and the Samsung Galaxy Buds FE at $99 as better on ANC and battery, and EarFun’s own Air Pro 4 is $89.99; any of these is the better choice when noise cancelling or measured battery matters more than codec flexibility. [1][13]