Sennheiser MM550X Wireless Headphones vs Panasonic RP-HS220PP Wired Earphones

  • Sennheiser MM550X Wireless Headphones were first released on 2nd April 2012.
  • Panasonic RP-HS220PP Wired Earphones were first released on 21st October 2013.
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Headphone Type
Connectivity
Microphone
Yes
No
Colour
Black
Pink
Release date
2nd April 2012
21st October 2013
Model Number
MM550X
RP-HS220PP
Cord Length (Metres)
-
1.2
Bluetooth
Yes
No
Impedance (Ohms)
-
17.5
Frequency Response Range
-
10Hz-22,000Hz