HILDCROA BX31 Wireless In-Ear Earbuds, Bluetooth 5.3

HILDCROA BX31 wireless in-ear earbuds are listed with Bluetooth 5.3, touch controls, an LED battery display, and a charging case. The listing claims up to 75 hours total playback, IPX7 protection, and ear hooks for sports use. Customer feedback is positive about sound and fit overall, but reports mixed connection experiences.

At a glance

The manufacturer claims more than 8 hours of playback per charge and 75 hours with the case. An LED display shows battery levels for the earbuds and case.
Bluetooth 5.3 and touch controls are listed. Controls are described as supporting calls, playback, volume, track changes, and voice-assistant activation.
The listing describes an in-ear sports fit with ear hooks and three tip sizes, along with an IP7 nano-coating claim for sweat or wet conditions.

Price

$21.98Save 91%

Reference price: ~~$249.99~~

Price checked: Nov 14, 2026

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Pros and cons

Pros

A USB Type-C charging interface is listed, and the case has an LED battery display.
The listing describes multiple touch-control functions and broad compatibility with Bluetooth devices.
Customer feedback reports positive impressions of sound quality, fit, comfort, and everyday usability.

Technical specifications

18 specifications

Identity
Brand	HILDCROA
Model	BX31

Connectivity and controls
Wireless connection listed	Bluetooth
Bluetooth version	5.3
Listed Bluetooth range	10 meters
Control method	Touch
Charging interface	USB Type C
Headphone jack	No Jack

Audio
Driver type	Dynamic Driver
Driver size	13 millimeters

Fit and use
Form factor	In Ear
Listed compatible devices	Cellphones, Tablets, Laptops, Desktops, Smart Speakers, Televisions

Materials and protection
Enclosure material	Plastic
Water resistance listed	Waterproof
Color	Rose Gold

Battery and charging claims
Playback from one charge	over 8 hours
Playback with charging case	75 hours
Claimed full-charge time	1.5 hours

What to know before buying

The listing combines an IPX7 waterproof claim with an IP7 nano-coating description. Treat water protection as a manufacturer claim and check the product instructions for use limits. Playback figures are also claims: over 8 hours per charge and 75 hours with the case. The listing says 1.5 hours for a full charge without specifying exactly what is being charged.

What’s in the box

Included

Cable
Eartip
User manual
Wireless charging case (1)
Wireless earbuds (2)

Who is it for?

A good fit for

Listeners seeking in-ear Bluetooth earbuds for sports, travel, or everyday use.
Buyers who want touch controls, a battery display, and a charging case.

Less suited to

Buyers who need a wired headphone connection, since the listing says there is no headphone jack.
Buyers who need consistently dependable Bluetooth pairing, given the mixed connectivity feedback.

HILDCROA BX31 Wireless In-Ear Earbuds, Bluetooth 5.3 · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.5 / 5 · 221 ratings

5 stars78%78%
4 stars11%11%
3 stars3%3%
2 stars3%3%
1 star5%5%

Customer feedback highlights sound quality, snug fit, comfort, and everyday practicality, while Bluetooth connectivity is mixed, with some reporting easy pairing and others connection problems. That pairing uncertainty matters for buyers relying on a consistent connection during exercise or calls. The feedback is broadly positive, but ratings alone do not explain individual experiences.

Positive themes

Customers report good sound quality and a snug, comfortable fit.
Feedback also describes the design and day-to-day use positively.

Mixed feedback

Connectivity feedback is mixed. Some customers find pairing easy, while others report connection issues.

Frequently asked questions

How long does the HILDCROA BX31 battery last?

The listing claims over 8 hours from a single charge and 75 hours total with the charging case. These are manufacturer claims, not independently verified runtime results.

Can these earbuds be used for workouts?

The listing presents them as sports earbuds with ear hooks and an IPX7 waterproof claim. Check the product instructions for water exposure limits.

How do the earbuds connect and charge?

Bluetooth is listed for wireless connection, and the charging interface is USB Type C. The listing gives a Bluetooth range of 10 meters.