11 August 2026
TWS earbuds: the specifications worth reading
Driver size and codec support tell you less than you would think. Latency, mic count and case battery are what change daily use.
Earbud listings compete on numbers that rarely change how the product feels. Here is what actually matters.
Battery: read the two numbers separately
"40 hours" almost always means the buds plus the case. The number that matters on a commute is the bud-only figure — typically 6 to 10 hours.
Latency mode
If you play games, look for a low-latency or gaming mode under 60 ms. Standard Bluetooth audio lag is enough to put footsteps out of sync.
Microphones
Two mics per bud with environmental noise cancellation makes calls usable outdoors. A single mic does not, regardless of what the box says about "HD calling".
Fit beats everything
Bass response depends almost entirely on seal. If a pair sounds thin, try the next ear-tip size up before deciding the drivers are weak.
