Panasonic RP-NJ300B Wireless Earphones vs Sennheiser HD221 Wired Headphone comparison

Show Only Differences Highlight Differences	Panasonic RP-NJ300B Wireless Earphones	Sennheiser HD221 Wired Headphones
key specs
Colour	Black	Black
Headphone Type	In-Ear	Over-Ear
Microphone	Yes	-
Connectivity	Wireless	Wired
Type	Earphones	Headphones
general
Brand	Panasonic	Sennheiser
Model	RP-NJ300B Wireless Earphones	HD221 Wired Headphones
Release date	October 12, 2017	April 11, 2016
Colour	Black	Black
Type	Earphones	Headphones
Headphone Type	In-Ear	Over-Ear
Connectivity	Wireless	Wired
Model Number	RP-NJ300B	HD221
product details
Microphone	Yes	-
Driver Type	Dynamic	-
Driver Size (mm)	9	-
Weight (g)	13.00	-
Cord Length (Metres)	-	1.2
Connector Size	-	3.5mm
sound features
Impedance (Ohms)	16	16
Frequency Response Range	10Hz-20,000Hz	19Hz-21,000Hz
Sensitivity (dB)	-	108
connectivity features
Bluetooth	Yes	No
Bluetooth Version	4.1	-
Bluetooth range (Metres)	10	-
battery features
Charging Time (Hrs)	1.5	-
Battery Life (Hrs)	4.3	-

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