Bluetooth Kopfhörer In-Ear – Ultra-flach für Seitenschläfer -    Zorenza

Bluetooth In-Ear Headphones – Ultra-Thin for Side Sleepers

Black
£31.00 £43.00
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Bluetooth Kopfhörer In-Ear – Ultra-flach für Seitenschläfer -    Zorenza
Bluetooth In-Ear Headphones – Ultra-Thin for Side Sleepers

— Ultra-flat sleep headphones

Bluetooth In-Ear Headphones – Ultra-Thin for Side Sleepers

Achieve cleaner solder joints, faster heat transfer, and reliable electronic repairs — engineered for the bench, trusted on the line.

4.8 312 reviews
ColorBlack
£31.00 £43.00 You save £12.00
• USB charging cable
• 100g Capacity
• Fast Wetting
• PCB Safe
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SECURE PAYMENTS

— KEY BENEFITS

Why professionals choose this flux

01

Benefit Title

With a profile of only 10.6 mm, these headphones sit so flat in the ear that you can sleep on your side without feeling any pressure.

03

Reliable Results

The IPX5 certification reliably protects the headphones from sweat and splashes – whether during sports, cooking, or in the rain.

Bluetooth Kopfhörer In-Ear – Ultra-flach für Seitenschläfer — technical_key_benefits.centre_ring_image
02

Benefit Title

Thanks to the compact charging case, you have up to 24 hours of playback time – enough for days of uninterrupted music enjoyment.

04

Anti-Oxidation

A light tap is all it takes to control music, answer calls, or change tracks – without having to pick up your smartphone.

Benefit Title
Reliable Results
Benefit Title
Anti-Oxidation
01

Benefit Title

With a profile of only 10.6 mm, these headphones sit so flat in the ear that you can sleep on your side without feeling any pressure.

Benefit Title
02

Reliable Results

The IPX5 certification reliably protects the headphones from sweat and splashes – whether during sports, cooking, or in the rain.

Reliable Results
03

Benefit Title

Thanks to the compact charging case, you have up to 24 hours of playback time – enough for days of uninterrupted music enjoyment.

Benefit Title
04

Anti-Oxidation

A light tap is all it takes to control music, answer calls, or change tracks – without having to pick up your smartphone.

Anti-Oxidation

— HOW IT WORKS

Perfect soldering in four steps

Bluetooth Kopfhörer In-Ear – Ultra-flach für Seitenschläfer — technical_how_it_works.step_1_image 1

Apply Flux

When falling asleep on your side, the ultra-flat headphones do not press against the pillow, allowing you to enjoy relaxing music or audiobooks without any discomfort.

Bluetooth Kopfhörer In-Ear – Ultra-flach für Seitenschläfer — technical_how_it_works.step_1_image

Apply Flux

When falling asleep on your side, the ultra-flat headphones do not press against the pillow, allowing you to enjoy relaxing music or audiobooks without any discomfort.

Heat Component

The IPX5 protection resists sweat and splashes, while the stable Bluetooth 5.3 connection transmits your favorite track without interruptions up to 15 meters away.

Bluetooth Kopfhörer In-Ear – Ultra-flach für Seitenschläfer — technical_how_it_works.step_2_image 2
Bluetooth Kopfhörer In-Ear – Ultra-flach für Seitenschläfer — technical_how_it_works.step_2_image

Heat Component

The IPX5 protection resists sweat and splashes, while the stable Bluetooth 5.3 connection transmits your favorite track without interruptions up to 15 meters away.

Bluetooth Kopfhörer In-Ear – Ultra-flach für Seitenschläfer — technical_how_it_works.step_3_image 3

Apply solder

In the home office, touch control enables lightning-fast call answering, while the ergonomic design provides hours of wearing comfort without ear pressure.

Bluetooth Kopfhörer In-Ear – Ultra-flach für Seitenschläfer — technical_how_it_works.step_3_image

Apply solder

In the home office, touch control enables lightning-fast call answering, while the ergonomic design provides hours of wearing comfort without ear pressure.

Complete Connection

The compact charging case fits in any pocket and recharges the headphones on the go, so you can enjoy continuous music on long trips.

Bluetooth Kopfhörer In-Ear – Ultra-flach für Seitenschläfer — technical_how_it_works.step_4_image 4
Bluetooth Kopfhörer In-Ear – Ultra-flach für Seitenschläfer — technical_how_it_works.step_4_image

Complete Connection

The compact charging case fits in any pocket and recharges the headphones on the go, so you can enjoy continuous music on long trips.

APPLICATIONS

Designed for precision electronics

Achieve cleaner solder joints, faster heat transfer, and reliable electronic repairs — engineered for the bench, trusted on the line.

PCB Repair

PCB Repair

The slim profile prevents pressure discomfort even when sleeping on your side – ideal for sleep music, meditation, or audiobooks before bed.

Micro Soldering

Micro Soldering

Thanks to IPX5 water resistance, the headphones easily withstand intense workouts and sweat without affecting sound or connection.

Connector Repair

Connector Repair

In the home office or while doing household tasks, touch control allows hands-free operation, while the stable connection promotes concentration.

Circuit Assembly

Circuit Assembly

The compact charging case makes these headphones the perfect travel companion – whether on the bus, train, or airplane, the battery stays charged with the case.

Applications

Designed for precision electronics

Before & After

Compare the results

Without Flux

  • Poor wetting
  • Weak joints
  • Surface oxidation
  • Frequent rework
Bluetooth Kopfhörer In-Ear – Ultra-flach für Seitenschläfer — technical_before_after.without_card_image

With Flux

  • Smooth flow
  • Strong bond
  • Clean surface
  • Reliable joint
Bluetooth Kopfhörer In-Ear – Ultra-flach für Seitenschläfer — technical_before_after.with_card_image
Bluetooth Kopfhörer In-Ear – Ultra-flach für Seitenschläfer — technical_before_after.without_card_image
Without Flux
Bluetooth Kopfhörer In-Ear – Ultra-flach für Seitenschläfer — technical_before_after.with_card_image With Flux

Without Flux

  • Poor wetting
  • Weak joints
  • Surface oxidation
  • Frequent rework

With Flux

  • Smooth flow
  • Strong bond
  • Clean surface
  • Reliable joint
The numbers behind the paste
Technical Specifications

The numbers behind the paste

These headphones combine an ultra-flat side sleeper design with modern Bluetooth 5.3 technology, long battery life, and reliable splash protection – all relevant data is compactly summarized here.

Net Weight

Net Weight

5.3

Melting Point

Melting Point

60 °C

Application

Application

PCB Soldering

Formula

Formula

Low Residue, No-Clean

Usage

Usage

100 g Electronics Repair

Halide Content

Halide Content

< 0.1% (RoHS)

Net Weight

Net Weight

5.3

Melting Point

Melting Point

60 °C

Application

Application

PCB Soldering

The numbers behind the paste
Formula

Formula

Low Residue, No-Clean

Usage

Usage

100 g Electronics Repair

Halide Content

Halide Content

< 0.1% (RoHS)

Social Proof

Our customer reviews

4.8
412
5
78%
4
15%
3
5%
2
1%
1
1%
Reviewer
Reviewer
Reviewer
Reviewer
Kreszenz G.

Kreszenz G.

Verified Buyer · 1 week ago

I am a side sleeper and have never had luck with headphones until now – I barely notice these. No pressure, no slipping, simply perfect.

Massimo S.

Massimo S.

Verified Buyer · 3 weeks ago

I use them daily while jogging. They fit perfectly and sweat doesn't affect them at all. The sound is really surprisingly good for the size.

Karl-Heinz H.

Karl-Heinz H.

Verified Buyer · 1 month ago

The charging case is tiny – fits easily in the pocket. The battery easily lasts me all day, very satisfied.

Frank-Peter S.

Frank-Peter S.

Verified Buyer · 2 months ago

The connection is stable, even when I leave my phone in the next room. One tip: read the instructions briefly the first time you pair it, then everything works immediately.

FAQ

Questions and Answers

Your order usually arrives within 8–15 business days. As soon as your package is on its way, you will receive an email from us with a tracking link so you can see exactly where your order is.

Yes, absolutely! We ship all orders for free – no matter how much you order.

Of course! You have 30 days to return your order. Just contact our customer service and we will send you all the information for the return. It's simple and quick.

You can easily pay with PayPal, Klarna, credit card (Visa, Mastercard, American Express), Google Pay, or Apple Pay. All payments are processed through a secure, encrypted connection (SSL).

Yes, 100%! We use state-of-the-art SSL encryption and strictly comply with the GDPR. Your data is used exclusively for your order and is never shared.