Sennheiser MM550X Wireless Headphones vs Philips FIDELIO X1/28 Wired Headphones comparison

Show Only Differences Highlight Differences	Sennheiser MM550X Wireless Headphones	Philips FIDELIO X1/28 Wired Headphones
key specs
Headphone Type	On-Ear	Over-Ear
Microphone	Yes	-
Connectivity	Wireless	Wired
Type	Headphones	Headphones
Colour	Black	Black
general
Brand	Sennheiser	Philips
Model	MM550X Wireless Headphones	FIDELIO X1/28 Wired Headphones
Release date	April 2, 2012	March 1, 2013
Type	Headphones	Headphones
Headphone Type	On-Ear	Over-Ear
Connectivity	Wireless	Wired
Colour	Black	Black
Model Number	MM550X	FIDELIO X1/28
product details
Microphone	Yes	-
Connector Size	-	3.5mm
connectivity features
Bluetooth	Yes	No
sound features
Impedance (Ohms)	-	30
Sensitivity (dB)	-	100
Frequency Response Range	-	10Hz-40,000Hz