Noontec Zoro WirelessAKG K551Ultrasone HFI-450
Top 17%1,102 points
Top 17%
Top 55%600 points
Top 55%
Top 61%514 points
Top 61%
Noontec Zoro Wireless
AKG K551
vs
Ultrasone HFI-450
vs
Top specs and features

Noontec Zoro Wireless vs AKG K551 vs Ultrasone HFI-450: 23 facts in comparison

1. highest frequency

The highest frequency at which device produces audio. The higher the high-frequency response, the clearer and crispier the treble.
26000Hz
Sony MDR-Z1R: 120000Hz
28000Hz
20000Hz

2. lowest frequency

The lowest frequency at which the device produces audio. The lower the low-frequency response, the stronger and juicier the bass.
13Hz
Sony MH1CBLK: 1Hz
12Hz
20Hz

3. weight

170g
Sony MDR-EX150AP: 3g
305g
85g

4. 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.
Noontec Zoro Wireless
AKG K551
Ultrasone HFI-450
48% have it

5. 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.
16Ohms
Flips Solo 2 Social: 4Ohms
32Ohms
32Ohms

6. has a neodymium magnet

Devices with neodymium magnets are lighter and more powerful than those which use ferrite magnets. They also have more bass and clear high notes.
Noontec Zoro Wireless
AKG K551
Ultrasone HFI-450
33% have it

7. sound pressure level

Devices with a higher sound pressure level are generally louder when supplied with any given audio source.
108dB/mW
AKG K553 Pro: 144dB/mW
114dB/mW
96dB/mW

8. no battery needed

This device works without batteries. It weighs less and you don't have to worry about recharging or replacing the battery.
Noontec Zoro Wireless
AKG K551
Ultrasone HFI-450
73% have it

9. has a tangle free cable

The cable is designed to minimize tangling.
Noontec Zoro Wireless
AKG K551
Ultrasone HFI-450
25% have it

10. has a detachable cable

With a detachable cable you can use alternative cables, and if the cable is pulled it will pop out instead of breaking.
Noontec Zoro Wireless
AKG K551
Ultrasone HFI-450
38% have it

11. can be folded

Folding devices are good for transporting as they take up less space in your bag.
Noontec Zoro Wireless
AKG K551
Ultrasone HFI-450
31% have it

12. 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.
Noontec Zoro Wireless
AKG K551
Ultrasone HFI-450
36% have it

13. driver unit size

The driver unit is the component that produces sound in the device. Bigger drivers are more powerful and can produce better bass.
40mm
Audeze EL-8 Titanium: 100mm
50mm
40mm

14. has an over-the-ear form

Comfortable full-size form with earcups that fully enclose your ears. This model is loved for its increased sound isolation and the fact that it won't leak sound to your neighbors. It offers potential for maximum bass and loudness levels.
Noontec Zoro Wireless
AKG K551
Ultrasone HFI-450
42% have it

16. has a straight plug

A straight plug is better when the jack is on the top or bottom of your player.
Noontec Zoro Wireless
AKG K551
Ultrasone HFI-450
53% have it

17. Can be used wirelessly

Wireless devices allow users more freedom of movement.
Noontec Zoro Wireless
AKG K551
Ultrasone HFI-450
16% have it

18. control panel placed on a device

There is a control panel on the device body, so you can easily access the volume control or remote without having to interact with a cable or another device it's connected to.
Noontec Zoro Wireless
AKG K551
Ultrasone HFI-450
14% have it

19. has a 3.5mm male connector

A standard 3.5mm male connector is suitable for use with all MP3 players and computer sound cards.
Noontec Zoro Wireless
AKG K551
Ultrasone HFI-450
87% have it

20. 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.
Noontec Zoro Wireless
AKG K551
Ultrasone HFI-450
22% have it

21. cable length

A long cable ensures more freedom of movement.
1.2m
Pioneer SE-A1000: 6m
1.2m
1m

22. has a rechargeable battery

The battery can be recharged and used over again.
Noontec Zoro Wireless
AKG K551
Ultrasone HFI-450
8% have it

23. supports Bluetooth pairing using NFC

Device supports fast Bluetooth pairing using NFC so it can communicate with other devices over Bluetooth. You can fastly pair devices without entering a code by simply holding one device next to the device with which it is to be paired.
Noontec Zoro Wireless
AKG K551
Ultrasone HFI-450
3% have it

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