Sennheiser HD251 II Wired Headphones vs Sennheiser 506410 Wireless Headset comparison

Show Only Differences Highlight Differences	Sennheiser HD251 II Wired Headphones	Sennheiser 506410 Wireless Headset
key specs
Colour	Black	Black
Headphone Type	Over-Ear	On-Ear
Connectivity	Wired	Wireless
Type	Headphones	Headset
Microphone	-	Yes
general
Brand	Sennheiser	Sennheiser
Model	HD251 II Wired Headphones	506410 Wireless Headset
Release date	November 8, 2012	November 22, 2014
Colour	Black	Black
Type	Headphones	Headset
Headphone Type	Over-Ear	On-Ear
Connectivity	Wired	Wireless
Model Number	HD251 II	506410
product details
Cord Length (Metres)	1	-
Connector Size	3.5mm	-
Weight (g)	140.00	50.00
Microphone	-	Yes
sound features
Impedance (Ohms)	70	-
Sensitivity (dB)	120	-
Frequency Response Range	16Hz-22,000Hz	-
connectivity features
Bluetooth	No	Yes
battery features
Charging Time (Hrs)	-	1
Battery Life (Hrs)	-	8

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