Has sound isolation / passive noise reduction
The device sits tightly in place, creating an acoustic seal which reduces background noise and prevents your music from leaking out.
Has a removable microphone
The microphone can be attached or detached if necessary.
Noticeably lower impedance
3 Ohms lower impedance. Impedance is the device’s electrical resistance to the current being pushed through it. The lower the impedance, the easier it is to get higher volume and requires less power.
Distinctly bigger driver unit
10 mm bigger driver unit. The driver unit is the component that produces sound in the device. Bigger drivers are more powerful and can produce better bass.