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.
Beyerdynamic MMX 101 iE: 12 Ohms
16. maximum bluetooth range
The device can connect at a greater distance via Bluetooth or infrared to another device.
Sena SMH10 Motorcycle Headset & Intercom: 900m
17. has an on-ear form
This device comfortably rests on top of your outer ears. As it doesn't block out everything from the outside world, it's preferred in places like office environments and recommended for outdoor activities.
9% have it
18. has a mute function
The device has an option to mute/unmute a conversation directly from the device.