Sennheiser MX271 Wired Earphones vs Sennheiser HD450 BT Wireless Headphones comparison

Show Only Differences Highlight Differences	Sennheiser MX271 Wired Earphones	Sennheiser HD450 BT Wireless Headphones
key specs
Colour	Black	Black
Headphone Type	In-Ear	Over-Ear
Microphone	Yes	Yes
Connectivity	Wired	Wireless
Type	Earphones	Headphones
general
Brand	Sennheiser	Sennheiser
Model	MX271 Wired Earphones	HD450 BT Wireless Headphones
Release date	March 28, 2012	January 1, 2017
Colour	Black	Black
Type	Earphones	Headphones
Headphone Type	In-Ear	Over-Ear
Connectivity	Wired	Wireless
Model Number	MX271	HD450 BT
product details
Microphone	Yes	Yes
Cord Length (Metres)	1.2	-
Driver Type	Dynamic	-
Connector Size	3.5mm	-
Weight (g)	12.00	-
sound features
Impedance (Ohms)	16	-
Sensitivity (dB)	118	-
Frequency Response Range	19Hz-20,000Hz	-
connectivity features
Bluetooth	No	Yes