CoolJumper 750-4 Wireless Earbuds, Bluetooth 5.4

CoolJumper 750-4 wireless earbuds pair Bluetooth 5.4 with touch controls, a built-in microphone and a charging case. The listing claims up to 48 hours total playback, but gives a more useful breakdown of around 6 hours per charge plus up to 7 case recharges.

At a glance

13 mm dynamic drivers and manufacturer-described Hi-Fi stereo sound.
Bluetooth 5.4, touch controls and a built-in microphone for hands-free calls.
The stated battery breakdown is around 6 hours per charge and up to 7 additional charges from the case.
The listing claims IP7 protection and describes the design as suitable for workouts.

Price

£14.99Save 68%

Reference price: ~~£46.99~~

Price checked: 12 Nov 2026

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Pros and cons

Pros

Bluetooth 5.4 and touch control are specified, with no headphone jack listed.
The case-supported playback claim comes with an approximate per-charge estimate and extra-charge figure.
A built-in microphone is claimed for calls as well as listening.

Technical specifications

16 specifications

Identity and design
Brand	CoolJumper
Model	750-4
Colour	Onyx Black
Earbud shape	in_ear
Style	Modern
Driver type	Dynamic Driver
Driver size	13 Millimetres

Connectivity and controls
Bluetooth version	5.4
Control methods listed	Touch
Headphone jack	No Jack

Battery and protection claims
Playback per charge	around 6 hours per charge
Case-provided additional charges	up to 7 extra charges
Maximum total playback claim	up to 48 hours
Water-resistance claim	IP7

Other listed features
Call and background-noise feature claim	CVC 8.0
Weight per earbud claim	around 4g per bud

What to know before buying

Listing details to confirm

Battery figures are listing claims, not verified runtime. Playback time will depend on use, and the total claim is case-supported rather than one continuous earbud charge.

What’s in the box

Charging caseCheck selected pack

Check which accessories are included in your selected pack before buying.

Who is it for?

A good fit for

Listeners wanting Bluetooth earbuds with touch controls and a built-in microphone.
Buyers who prefer a case-supported battery claim with per-charge and recharge details.
People considering earbuds for everyday listening or workouts, while treating the listed water protection as a manufacturer claim.

Less suited to

Buyers who need a stated runtime independently verified or a clearly specified continuous listening duration beyond the approximate per-charge claim.

CoolJumper 750-4 Wireless Earbuds, Bluetooth 5.4 · photo 2 — Additional product photo 2

Customer reviews on Amazon

5 / 5 · 18 ratings

5 stars100%100%
4 stars0%0%
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The supplied aggregate rating is entirely five-star across a small set of ratings, which is a positive but limited signal. No written customer feedback is available, so it cannot show what buyers liked or how the earbuds perform in practice. Consider the rating separately from the listed Bluetooth, battery and protection claims.

Frequently asked questions

How long do the CoolJumper 750-4 earbuds last?

The listing claims around 6 hours per charge and up to 7 extra charges from the case, with up to 48 hours total. These are manufacturer claims, not independently verified runtime.

Do these earbuds have touch controls and a microphone?

Yes. Touch is the listed control method, and the product description claims a built-in microphone for hands-free calls.

Are the CoolJumper 750-4 suitable for workouts?

The listing describes them for workouts and claims IP7 water protection. Treat that rating and the exercise suitability as unverified manufacturer claims.