Stability is strong once fitted, with fins/wings providing secure anchoring even during movement and workouts. However, the anchoring design and housing size can be less accommodating for smaller ears in some reports.
Stability is widely praised thanks to the stabilizers and seal, making them suitable for commuting and light workouts; not as locked-in as dedicated sport buds but secure for most users.
Stability on the head is strong thanks to the firm clamp and secure fit, making them stay put during commuting and movement, though that stability can come at the cost of comfort for some wearers.
When the foam tips fit correctly, stability is very strong even for workouts; fit can still be finicky for some ears, and occasional tip or seal quirks (or very small shells) can reduce security.
Stability can be excellent when the right wings and tips are used, making them suitable for commuting and even cycling. However, some reviewers still experienced loosening or popping out over time, so fit testing matters.
Stability is strong once you achieve a good seal, with many tests showing the buds stay put through workouts and vigorous movement. However, the stem design can sometimes snag on hair/helmets/towels, and fit-dependent slippage can occur for some users without the right tips.
Fit stability is usually secure once the right tips are chosen and works for commuting and light activity; however, a few reviewers report a looser fit or buds shifting/coming loose during vigorous movement.
Fit is generally stable for commuting and workouts, but without stabilizing fins/wings it can jostle during running and depends heavily on choosing the right tip/seal.
Stability is reported as good for daily wear: the light weight and balanced clamping keep the headphones secure for walking and even some light jogging. Because there’s no sweat rating, most reviewers still discourage workouts despite the stable fit.
Fit stability is mixed: many reviewers report a secure, comfortable fit suitable for daily use and even workouts, but others experienced loosening with sweat, facial movement, or when pinching controls. Achieving a tight seal with the right tips is central to stability.
Fit stability is mixed across reviewers: some report a secure, ergonomic fit, while others have frequent readjustments or dislodges during running or sharp head turns. Tip choice, ear size, and housing depth strongly influence stability.
Wireless stability is generally good, but some users experienced intermittent 2.4GHz disconnects when the dongle was plugged directly into crowded USB ports; firmware updates and placing the dongle in the dock (away from interference) reduced or eliminated issues.
Fit stability is generally good when the clamp and seal are achieved, but at least one review notes variability in fit depending on head shape and positioning. Small changes in how the earcups sit can affect both sound and isolation, meaning consistency may differ across users. Overall, stability is good for many but not perfectly uniform for everyone.
The relaxed clamp and loose fit feel comfortable but mean the P100 can shift or loosen during vigorous movement, making it less suited to sports or very active use than to everyday commuting and home listening.
Stability on the head is generally good for everyday movement and even moderate activity, but fit can be a challenge for smaller heads. Some reviews note the headset can shift or slide despite mild clamp, while others find it stays put comfortably once adjusted.
Fit stability is the most common ergonomics complaint: the yoke system and light clamp can allow the cups to shift, which breaks seal and changes bass and ANC performance. Many users still find it comfortable, but those who move around a lot may need occasional readjustment to keep performance consistent.
Fit stability is generally fine for desk use and walking, but the comfort-focused, lighter clamp can allow the headset to shift during stretching, yoga, or more vigorous movement. Multiple reviewers recommend it as a commuter headphone rather than an active or workout option.
A relatively light clamping force keeps the H9 II feeling relaxed on the head but can allow the earcups to shift if you move around a lot, making stability only average.