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Mature Secretary Lady Working On Laptop In Earphones Sitting In Modern Office. Successful Business Career. Selective Focus
Earbuds

Earbuds

Adhesive solutions for more freedom.



The trend in headphones is increasingly towards wireless models. The term "earbuds" has become established for the small headphones worn directly in the ears and connected to the smartphone or music player by radio technology. Earbuds consist of numerous electronic components and are highly complex devices. They are exposed to numerous external influences, which require corresponding consideration at the development stage.

What are earbuds?

The original meaning of the term "earbuds" referred to a headphone type worn directly in the ear and whose earplugs, while firmly attached to the outer ear, are not directly inserted into the auditory canal, unlike in-ear headphones. They also differ markedly from on-ear headphones, since they are not worn on the ear. Earbuds can be connected by cable or wirelessly to the replay unit, but the term earbuds has now become associated with models using wireless technology. The headphones are connected by Bluetooth with a smartphone or another player, such as an MP3 player and provide high quality replay. The sound reaches the eardrum directly via small loudspeakers in the earbuds. The frequency range of the headphones covers the entire hearing range of the human ear up to about 20 kHz. Furthermore, modern technology provides the option of actively suppressing external noises (active noise canceling - ANC) or operating the headphones in transparent mode. Since the earbuds do not need any cables, they offer maximum freedom of movement and are ideally suited to mobile music enjoyment. 

The market for wireless headphones is growing at breakneck speed and the sales figures for earbuds are increasing worldwide. Manufacturers are enjoying enormous sales growth. According to the market researchers of Counterpoint, the overall worldwide growth in earbuds in the third quarter of 2019 alone was about 4.1 billion US dollars.

Earbud components and adhesive applications

Earbuds are highly complex devices, packed full of electronics. Apart from the loudspeakers and microphones, there needs to be space inside the tiny headphones for batteries, radio modules, amplifiers and a processor unit. The housing is made out of sturdy and simultaneously skin-friendly materials. It includes a few operating and display elements, such as status LEDs or an on-off switch. There are often elaborate sound conduction channels between the loudspeaker and the acoustic delivery point inside the ear to achieve optimal replay quality.

Adhesive solutions are often used for the assembly of these components. Below you will find an overview of the most common applications for earbuds:

  • Battery mounting
  • FPCs mounting
  • PCBs mounting
  • Speaker mesh mounting
  • Button fixation
  • Shielding and grounding
  • Covering
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Hardware requirements

Earbuds are worn while people are on the move, at work or during sport. They should be convenient and not bother the wearer. At the same time, the hardware has to work reliably and feature high quality replay. The high degree of hardware miniaturization inside the devices is a challenge. Despite their complexity, the earbuds have to be impervious to external influences like moisture, sweat and constant movement. This results in a range of different requirements for the adhesive solutions used.

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Adhesive solutions for earbuds

Every project is individual and has specific requirements. Our ambition is always to provide you with the most suitable solution. Our existing product portfolio offers established, reliably high-performance adhesive systems with specialized properties to meet your demands. In addition, we are able to develop tailor-made solutions in a cooperative partnership.​

​Please contact us directly or ask your local representative about your possibilities.

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Solutions for your success

Assortment
Double-sided Film Tapes
Acrylic Foam Tapes
PE Foams Tapes
Synthetic Foam Tapes
Bond & Detach®
Structural Bonding Solutions
Electrically Conductive Tapes
Exemplary case studies

• Battery mounting
• FPC mounting

• Back cover mounting
• Component mounting

• Back cover mounting
• Component mounting

• Battery mounting
• Back cover mounting

• Battery mounting
• Component mounting

• Back cover mounting
• Fabric mounting
• Component mounting

• Grounding
• Shielding
• Conductive gap-filling

Use this assortment when your main requirements are

• Very good bonding
• Good wetting
• Efficient die-cutting
• Specific properties (e.g., Anti-repulsion, Chemical resistant, Differential bonding properties, bonding on LSE substrates and many more) 

• Superior bonding
• Superior impact resistance
• Very good sealing and waterproofing
• Chemical resistance

• Impact resistance
• Anti-repulsion
• Reworkability

• Superior, residue-free removability
• Quick bonding properties, even on LSE substrates
• Impact resistance

• Superior, residue-free removability
• Impact resistance

• Superior bonding power, even on small bonding areas
• Superior sealing properties
• Anti-repulsion
• Chemical resistance

• Electrical conductivity
• EMI shielding

Downloads

tesa® 7910
Specifications
PET film
acrylic
10 µm
60 %
tesa® LTR 8722
Specifications
none
low temperature activated reactive adhesive
50 µm
tesa® 60161 Mounting Plus UV tesa® 61332
Specifications
PET film
tackified acrylic
200 µm
80 %
tesa® 61350
Specifications
PET film
tackified acrylic
50 µm
70 %
tesa® 64720
Specifications
polyimide
acrylic
20 µm
25 %
tesa® 64825 Bond & Detach
Specifications
stretchable specialty
specialty
250 µm
tesa® 67310
Specifications
polyimide
acrylic
10 µm
30 %
tesa® 67320
Specifications
polyimide
acrylic
20 µm
30 %
tesa® 68548
Specifications
PET film
tackified acrylic
10 µm
tesa® 68549
Specifications
PET film
tackified acrylic
tesa® 68551
Specifications
PET film
tackified acrylic
40 µm
50 %
tesa® 68673
Specifications
PET film
tackified acrylic
30 µm
50 %
tesa® 68675
Specifications
PET film
tackified acrylic
50 µm
50 %
tesa® 68814 Preliminary
Specifications
PET film
modified acrylic
100 µm
50 %
tesa® 68817 Preliminary
Specifications
PET film
modified acrylic
200 µm
90 %
tesa® 68960
Specifications
PET film
30 µm
50 %
tesa® 75120
Specifications
acrylic
acrylic
200 µm
tesa® 75405
Specifications
acrylic
modified acrylic
50 µm
tesa® 75410
Specifications
acrylic
modified acrylic
100 µm
tesa® 75415
Specifications
acrylic
modified acrylic
150 µm
tesa® 75620
Specifications
acrylic
modified acrylic
200 µm
tesa® 75625
Specifications
acrylic
modified acrylic
250 µm
tesa® 75630
Specifications
acrylic
modified acrylic
300 µm
tesa® 75635
Specifications
acrylic
modified acrylic
350 µm
tesa® 75640
Specifications
acrylic
modified acrylic
400 µm
tesa® 75710
Specifications
PETP
modified acrylic
100 µm
100 %
tesa® 75715 H
Specifications
PETP
modified acrylic
150 µm
100 %
tesa® 75720
Specifications
PETP
modified acrylic
200 µm
100 %
tesa® 75725
Specifications
PETP
modified acrylic
250 µm
100 %
tesa® 75730
Specifications
PETP
modified acrylic
300 µm
100 %
tesa® 75735
Specifications
PETP
modified acrylic
350 µm
100 %
tesa® 75745
Specifications
PETP
modified acrylic
250 µm
100 %
tesa® 61305
Specifications
PET film
tackified acrylic
50 µm
60 %