Sennheiser MM400X Wireless Headphones vs Sennheiser HD428 Wired Headphones comparison

Show Only Differences Highlight Differences	Sennheiser MM400X Wireless Headphones	Sennheiser HD428 Wired Headphones
key specs
Colour	Black	Black
Headphone Type	On-Ear	Over-Ear
Microphone	Yes	-
Connectivity	Wireless	Wired
Type	Headphones	Headphones
general
Brand	Sennheiser	Sennheiser
Model	MM400X Wireless Headphones	HD428 Wired Headphones
Release date	November 8, 2012	March 17, 2012
Colour	Black	Black
Type	Headphones	Headphones
Headphone Type	On-Ear	Over-Ear
Connectivity	Wireless	Wired
Model Number	MM400X	HD428
product details
Microphone	Yes	-
Connector Size	3.5mm	-
Weight (g)	105.00	208.00
Cord Length (Metres)	-	3
sound features
Sensitivity (dB)	107	110
Frequency Response Range	15Hz-22,000Hz	18Hz-22,000Hz
Impedance (Ohms)	-	32
connectivity features
Bluetooth	Yes	No
Bluetooth range (Metres)	10	-
battery features
Charging Time (Hrs)	3	-
Battery Life (Hrs)	10	-

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