
Koss
The Koss BT221i are lightweight on‑ear clip‑style Bluetooth headphones featuring a 45 g open‑back design, pivoting ear‑clips, and an in‑line three‑button remote. They deliver balanced bass and mids, are sweat‑resistant, and offer up to six hours of playback via USB‑C charging.
Pros
Current
$27.99
Average
$27.18
Lowest
$19.99
Highest
$28.07
Lower = better sales rank
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Cons
From Expert Reviews
Praised by Experts
Criticized by Experts
From User Reviews
Users Love
Users Complain About
Expert Opinion
Professional reviewers commend the BT221i for its mature, balanced bass and mids, the lack of intrusive volume‑change beeps, and rock‑solid Bluetooth 4.2 pairing across iOS and Android. However, they criticize a pronounced treble peak and the fact that the headphones never achieve a truly high maximum volume, which may disappoint power‑hungry listeners.
What Users Say
Everyday users consistently highlight the lightweight, comfortable fit—especially for those who wear hats or have sensitive ears—and appreciate the secure clip during workouts and chores. The sweat‑resistant build and handy in‑line remote are also praised, while the most common complaints revolve around limited maximum volume and modest battery life.
Common Complaints
The most frequently mentioned issues are the limited maximum volume, a treble peak that can sound harsh, and a battery life that caps at roughly six hours.
What People Are Saying
“Lightweight and comfortable for extended wear, especially with hats or during activities”
“Good, balanced bass and mids; no volume-change beeps; reliable syncing with iOS and Android”
“Excellent customer service and value for casual use”
How It Compares
vs. Koss KSC75 (wired)
Advantages
Disadvantages
Choose BT221i for wireless, workout‑ready use; choose KSC75 for audiophile‑grade sound and unlimited playtime.
vs. Budget ear‑clip Bluetooth models
Advantages
Disadvantages
Select BT221i when comfort, sound balance, and durability matter; opt for cheaper clips if maximum volume and longer battery life are top priorities.