- Silicone tips seal out street noise
- Bluetooth 5.0 · 36h with case
- IPX4 sweat and rain rating
Two complete sets of small stem earbuds in one box, one white and one blue, with soft silicone tips, Bluetooth 5.4 and taps for music, calls and the voice assistant.
The FEFURS U38 comes as a pair of pairs: two complete stem-earbud sets in one box, each with its own charging case. One set is white, the other blue, so siblings can tell theirs apart without a name label. Both run on Bluetooth 5.4 and wear soft silicone tips shaped for smaller ears.
Buying two identical-spec sets at once solves a common family problem. Nobody argues over whose turn it is, and when one pair is left at a friend's house, the other still works.
What each U38 set includes:
At 4.3 grams per bud, by the maker's figure, the U38 is light for its size, and the rounded stems avoid sharp edges. The age guide covers 8 to 10, teens and grown-ups, so a parent can borrow the second set for a work call.
There is no LED readout on the case, just the plain charging case. That keeps things simple, though it means checking the battery on the phone or tablet, where many devices show the buds' charge once they're connected.
| Spec | Value |
|---|---|
| Model | FEFURS U38 |
| Sets per box | 2 (one white, one blue) |
| Fit | In-ear stem buds, soft silicone tips |
| Bluetooth | 5.4 |
| Range | Up to 15m |
| Pairing | Automatic when the buds leave the case |
| Driver | 10mm dynamic |
| Frequency response | 20Hz to 20kHz |
| Playtime per charge | 5 to 6 hours |
| Standby | Up to 300 hours |
| Case refill time | About 1 hour |
| Bud weight | 4.3g each (maker figure) |
| Controls | Touch: music, calls, voice assistant |
| Suggested ages | 8 to 10, teens and adults |
| In the box | 2 cases with 2 pairs of buds, user manual |
Each U38 bud holds a 10mm dynamic driver covering 20Hz to 20kHz, the full range people hear. That is a smaller driver than the 13mm and 14.2mm units in adult stem earbuds, and it suits the job: clear voices for lessons and audiobooks, with enough bass to make music fun.
Battery life is built around a school day rather than a long-haul flight. The buds play 5 to 6 hours on a charge, and the case refills them in about an hour. Left unused, a charged set can sit on standby for up to 300 hours.
Where two U38 sets earn their keep:
| Everyday task | How the U38 handles it |
|---|---|
| A full school day of on-and-off use | 5 to 6 hours per charge, then back in the case |
| A dead bud before the bus | About an hour in the case refills it |
| A week in a drawer | Up to 300 hours of standby |
| A call with grandparents | Built-in mic and tap to answer |
No water rating is listed for the U38. Treat the buds as indoor and everyday gear: wipe off sweat after gym class, keep them away from the pool and dry the case if it gets splashed.
For the full charging routine, including what to do when a bud stops filling up, see the charging guide.
Pairing the U38 takes seconds: take the buds out of the case and they link to each other and show up in the device's Bluetooth menu. Before handing a set over, though, spend two minutes on the device's sound settings, since the maker doesn't list a built-in volume cap.
Apple devices have a Headphone Safety setting that trims loud audio down to a level you pick. Many Android phones and tablets have a media volume limiter in their sound settings, and family-control apps can lock it in place.
Fit checks for small ears:
Taps on the stems handle music, calls and the assistant; the touch controls cheat card maps them out. If one side goes quiet, the left and right reset relinks the pair in a minute.
A two-pack isn't the right call for every family. If only one child needs earbuds, a single pair with more battery or a water rating may serve better, so here is how the U38 compares with a few other stem pairs that suit young listeners.
| Pair | Sets | Bluetooth | Battery | Water |
|---|---|---|---|---|
| FEFURS U38 | 2 | 5.4 | 5 to 6h a charge | Not listed |
| Awaiymi Kids Earbuds | 1 | 5.0 | 36h with case | IPX4 |
| MIPOW Miffy TD17 | 1 | 5.3 | 30h with case | IPX5 |
| TAGRY X08 | 1 | 5.x | 60h with case | IPX5 |
Choose the U38 if:
Look elsewhere if one child plays sports in the rain, where the Awaiymi Kids Earbuds add an IPX4 rating, or if a cute gift matters more than a second set, where the Miffy case steals the show. A teen who wants long battery and a digit readout will be happier with the TAGRY X08.
A quick family checklist first:
For more ideas on shades and case finishes, the colors guide shows the pairs in each look. And if the budget is set per child, the price bands show what a single pair costs next to this two-set box, so you can weigh one box of two against two separate pairs bought one at a time.
Yes. You get two complete sets, each with its own buds and charging case: one white, one blue.
The maker sizes it for ages 8 to 10, teens and adults. The soft silicone tips suit smaller ear canals.
No volume cap is listed, so set one on the device. iPhones and iPads have Headphone Safety, and many Android devices offer a media volume limiter.
About 5 to 6 hours of listening per charge, and the case refills the buds in around an hour.
Pair each set to its own device for the smoothest use. Most tablets play to one pair of earbuds at a time.