Test results: After a ten-week test phase, 90% of our testers have concluded that the water protection is particularly effective. Irritations caused by prolonged wearing were not noticed. Water in the ear canal was successfully suppressed, but it was still possible to have conversations at the same time. The earplugs were particularly effective when swimming in a swimming pool and for triathlon athletes.

In our twenty test subjects, earaches after swimming were eased by up to 90% during this time. Eighteen out of twenty test persons used the earplugs only for swimming, kiting and training. The remaining test persons also used the Earplugs for Swimming at work (in the office), during daily tasks (e.g. mowing the lawn) and when showering.

BOLLSEN offers a new ear measuring technology called AR KI TECH. This technology measures your ears with a help of a photo (taken e.g. by a smartphone) and designs individualised earplugs. A computer program uses the AR (Augmented Reality) technology to calculate the size of the external ear. The KI (artificial intelligence) technology then selects the appropriate size and shapes the earplug. Since our test persons had different ear sizes, we tested this option and were enthusiastic about it. The cost of this additional service is £12, which is affordable compared to the other adjustment methods (prices from £120).

The overall result of the test is very positive. The BOLLSEN product stands out from other products mainly due to its efficiency. After only seven days, our testers noticed a significant improvement in the quality of life. There was no heat sensation and, even after two weeks of use, no irritation in the ears. Our conclusion: These earplugs offer optimal protection when swimming.

Instruction for Use: With your index fingers insert the earplugs carefully in the ears and rotate them slowly into the ear canal. Our test persons were very satisfied with the use of the earplugs and are positively surprised by their almost invisible and optimally fitting shape.

Life Span: The manufacturer advertises that the product can be used 100 times, also for the sake of the environment. One pack of earplugs lasted with our users for about 5 – 6 months. The test persons wore the earplugs on a daily basis.

Protection of the Environment: Thumbs up on more time for the concept of reusability of the product. Furthermore, we are pleased to have finally tested a product from the EU, since shorter distances also mean less CO2 emissions in the air.

How Many dB Do the Earplugs for Swimming Dampen? According to the manufacturer, the earplugs have a SNR of 24 dB and provide a constant sound reduction at high (H), medium (M) and low (L) frequencies: H=24 dB, M=21 dB, L=19 dB. The attenuation value was tested according to ISO standard 4869-2 by an independent German testing institute.

Money-Back Guarantee: BOLLSEN Hearing Protection advertises its products with a money-back guarantee, as the company obviously believes very firmly in its products. Of course, we have also tested this option and returned a pair of used earplugs after 35 days. We have been refunded our full payment amount two days after the receipt of the goods. Once again, we are pointing our thumbs up.

*Legal information: The results of this product vary from user to user and do not have to be typical, nor can they be 100% guaranteed. The results merely reflect our experience based on the test.

This product also scored well in our test. However, it was not enough for the 1st place.

*Legal information: The results of this product vary from user to user and do not have to be typical, nor can they be 100% guaranteed. The results merely reflect our experience based on the test.

*Legal information: The results of this product vary from user to user and do not have to be typical, nor can they be 100% guaranteed. The results merely reflect our experience based on the test.

*Legal information: The results of this product vary from user to user and do not have to be typical, nor can they be 100% guaranteed. The results merely reflect our experience based on the test.