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Sennheiser HD 400U Wired Earphones vs Noise Buds Solo True Wireless Stereo (TWS) Earphones

Sennheiser HD 400U Wired Earphones vs Noise Buds Solo True Wireless Stereo (TWS) Earphones comparison

Show Only Differences Highlight Differences	Sennheiser HD 400U Wired Earphones	Noise Buds Solo True Wireless Stereo (TWS) Earphones
key specs
Headphone Type	In-Ear	In-Ear
Microphone	Yes	Yes
Connectivity	Wired	True Wireless Stereo (TWS)
Type	Earphones	Earphones
general
Brand	Sennheiser	Noise
Model	HD 400U Wired Earphones	Buds Solo True Wireless Stereo (TWS) Earphones
Release date	April 22, 2026	February 24, 2021
Type	Earphones	Earphones
Headphone Type	In-Ear	In-Ear
Connectivity	Wired	True Wireless Stereo (TWS)
Inline Remote	-	No
product details
Microphone	Yes	Yes
Cord Length (Metres)	1.2	-
Driver Type	Dynamic	-
Driver Size (mm)	9.7	10
Weight (g)	14.30	4.50
Boom Microphone	-	No
Foldable	-	No
Weight With Case (g)	-	52.5
sound features
Impedance (Ohms)	28	-
Active Noice Cancellation	No	-
Frequency Response Range	17Hz-20,000Hz	-
connectivity features
Bluetooth	-	Yes
Bluetooth Version	-	5
Bluetooth Codec Support	-	SBC,AAC
Bluetooth range (Metres)	-	10
battery features
Charging Port	-	USB Type-C
Charging Time (Hrs) Case Only	-	1.5
Battery Life (Hrs) Earpieces Only	-	7
Battery Life (Hrs) With Case Total	-	36

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