The QuietOn 4.0 earplugs are active noise-cancelling devices marketed specifically for use while sleeping. They are noted for their effectiveness in blocking external noise, a capability the product’s creator is recommending to others.
At £259, the earplugs are described as a significant expenditure for earplug technology. However, proponents argue the high price is justified by the combination of effective ANC, enhanced comfort, and sustained battery life.
Compared to the 3.1 model, the 4.0 represents a redesign. The earplugs feature a curve intended to mimic the shape of the ear canal, promoting a tighter natural seal. The unit also comes in black, differing from the white version of the previous model.
The charging case includes a battery and a meter displaying charge status via three LEDs. It connects via a USB-C port. Each set of earplugs provides 28 hours of use, and the case supplies three additional charges, totaling 112 hours of power. This suggests a total lifespan of approximately two weeks, assuming eight hours of use nightly.
Usage requires the correct fit. While Comply foam eartips are included, consumers have a choice of three additional sizes, and experimenting with the size is emphasized for optimal experience. For protection, each earbud incorporates a wax guard. Identification is provided by a letter marked on each bud, though the small size and grey-on-black lettering make reading difficult in low light.
Functionally, the 4.0 has no external controls. Upon removal from the case, they activate hear-through mode for 15 seconds. After this period, the ANC takes effect. This transition allows the user to hear ambient surroundings before the noise cancellation fully engages. The 4.0 removed the feature allowing users to hold the case to reactivate hear-through mode, a change the reviewer considered unnecessary.
Performance testing showed improvements over the older 3.1 model. The improved design creates a natural seal that blocks noise even before ANC is activated. With ANC engaged, the sound blocking capability was described as immaculate. ANC performs best against constant, low-frequency noise, making it effective against traffic, talking, and snoring.
One specific test showed the earplugs were able to block out a TV, enabling sleep while a partner watched television. The reviewer also highlighted the utility during travel, citing a four-hour train journey where the earplugs mitigated discomfort from talking companions.
Beyond noise blocking, comfort was reported as improved compared to the 3.1 model, which could sometimes cause irritation or drop out. The 4.0 units reportedly sit more firmly and feel more comfortable. Battery performance matched stated claims, lasting through a full night of use.
The consensus is that while the QuietOn 4.0 is comparably expensive to a set of standard ANC earbuds, its function as earplugs makes the cost justifiable. The device is characterized as better than standard passive earplugs because it effectively blocks noise, providing silence in multiple environments.
