More microphones result in better sound quality and enable the device to filter out background noise.
Nokia BH-905i: 10
3. can be used as a headset
A headset is one headphone or pair with a built-in microphone. Headsets can be used for applications which require communication i.e. Skype, games with voice chat, mobile phones etc.
96% have it
4. has voice commands
You can use your voice to control key functions of the device and you can easily access your device without pushing any button.
29% have it
5. has a rechargeable battery
The battery can be recharged and used over again.
69% have it
6. has voice prompts
This feature allows the device to inform you of important information through its audio function.
36% have it
7. Can be used wirelessly
Wireless devices allow users more freedom of movement.
70% have it
8. Bluetooth version
Samsung Level U Pro: 4.1
9. multipoint count
Multipoint allows you to link to more Bluetooth devices and switch between them. For example you can easily switch calls from one device to another without having to manually disconnect and reconnect.
Sony SBH20T: 3
10. 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
11. maximum bluetooth range
The device can connect at a greater distance via Bluetooth or infrared to another device.