Logitech 980231-0403 Wired Headset vs Sony MDR-RF4000K Wireless Headphone comparison

Show Only Differences Highlight Differences	Logitech 980231-0403 Wired Headset	Sony MDR-RF4000K Wireless Headphones
key specs
Colour	Black	Black
Headphone Type	Over-Ear	Over-Ear
Connectivity	Wired	Wireless
Type	Headset	Headphones
Microphone	-	No
general
Brand	Logitech	Sony
Model	980231-0403 Wired Headset	MDR-RF4000K Wireless Headphones
Release date	April 15, 2012	February 11, 2010
Colour	Black	Black
Type	Headset	Headphones
Headphone Type	Over-Ear	Over-Ear
Connectivity	Wired	Wireless
Model Number	980231-0403	MDR-RF4000K
product details
Microphone Impedance (Ohms)	-59	-
Connector Size	3.5mm	3.5mm
Microphone	-	No
Foldable	-	Yes
Weight (g)	-	300.50
sound features
Impedance (Ohms)	32	-
Frequency Response Range	20Hz-20,000Hz	-
connectivity features
Bluetooth	No	Yes
battery features
Battery Life (Hrs)	-	8

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