The B&O PLAY Earset 3i offer a comfortable and stable fit. Their old school earbud design allows you to monitor your surroundings while jogging but also lets a lot of ambient noise seep into your audio. Sadly, they won't fare well in loud environments and have a mediocre sound quality.
The Earset 3i have a unique design and a high-end appeal. They're incredibly lightweight, and the ear hooks make them stable enough, to use at the while running. The earbud design is also quite comfortable. However, the fit is a little loose. They won't fall off your ears, but the earbuds rest loosely on the edge of the ear canal and will move around, especially during strenuous exercise, affecting your listening experience.
The Earset 3i have a unique earbud design. They combine the old school earbud tips with sturdy ear hooks that are adjustable and make use of premium materials. They are less versatile than the Beoplay Earset Wireless but these earbuds look high-end and will stand out, however, the cable looks a little cheaply made in comparison.
The B&O Play Earset 3i are moderately comfortable and have a very adaptable design. You're able to adjust the height, and tightness of the hooks as well as the angle of the earbuds. Unfortunately, the old school ear bud design does not fit snuggly in the ear and forces you to adjust the earbuds regularly, to get a tight fit.
The Earset 3i have a decent control scheme. They provide call/music, Track-skipping, and volume controls. Unfortunately, the inline control module is a thin cylinder that is not intuitive to use and does not provide good tactile feedback.
The Earset 3i are very portable headphones. They're a little larger than typical earbuds, but they're small enough, to not be cumbersome to carry on your person. They will easily fit into your pockets, purse or bag.
The build quality of these headphones is decent but has a few flaws. A lot of effort was put into crafting the adjustable hooks, and it looks and feels solid enough to last a while. However, there are a lot more moving parts on these earbuds than most, which means more potential weak points. Also, the cable is thin and feels cheaply made compared to the rest of the build quality.
The Earset 3i have adjustable hooks that fit around the ear and prevent them from falling off your ears while running. This makes them stable enough to be used at the gym. However, the earbud design does not always provide the best fit. So although the headphones won't fall off your ears, the swiveling earbuds may move about as your exercising, which can get a little frustrating, especially when it causes a loss of sound quality.
The B&O Earset 3i is a mediocre sounding pair of closed-back earbuds. They have a poor Bass that lacks a lot of low-end, an overemphasized Mid Range, but a well-balanced Treble. The resulting sound profile is quite Mid-Rangy and without much Bass. Additionally, due to their earbud design, they have a poor Soundstage and Bass/Treble performance could vary quite a lot from user to user or even on the same individual between different re-seats .
The frequency response consistency of the Earset 3i is sub-par. The earbuds design of these headphones means they won't have a consistent fit across multiple re-seats and multiple users. They show more than 6dB of variance in the bass range and about 6dB of variance in the treble range.
These Earset 3i are not good at isolating listeners. Their earbud design does not create a good enough seal to block any ambient noise. They will struggle in loud environments and won't be ideal for noisy commutes. They also leak a bit compared to regular in-ear models. On the upside, they allow you to monitor your environment for cars and traffic, which makes them decent running or biking headphones.
Poor isolation. These earbuds - due to their open design and minimal seal - have very poor isolation. They offer no isolation below 1KHz, and above that, barely achieve more than 9dB of isolation. This is in quite a contrast with most In-ears that provide extreme amounts of passive isolation (mostly in the Treble Range).
Average leakage. These earbuds leak noticeably more than In-ears, and yet much less than Over-ears. They barely leak below 2KHz and the profile of the leakage that happens above that frequency is also quite narrow. However, the leakage level is moderately loud. So although the leakage coming out of these earbuds won't be bothersome in most situations, an audible high-pitched sound could be heard around you at high volumes.
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