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Sennheiser HD 400U Wired Earphones vs Oppo Enco Air 3 Pro True Wireless Stereo (TWS) Earphones

Sennheiser HD 400U Wired Earphones vs Oppo Enco Air 3 Pro True Wireless Stereo (TWS) Earphones comparison

Show Only Differences Highlight Differences	Sennheiser HD 400U Wired Earphones	Oppo Enco Air 3 Pro 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
Colour	-	White
general
Brand	Sennheiser	Oppo
Model	HD 400U Wired Earphones	Enco Air 3 Pro True Wireless Stereo (TWS) Earphones
Release date	April 22, 2026	July 10, 2023
Type	Earphones	Earphones
Headphone Type	In-Ear	In-Ear
Connectivity	Wired	True Wireless Stereo (TWS)
Colour	-	White
Inline Remote	-	No
product details
Microphone	Yes	Yes
Cord Length (Metres)	1.2	-
Driver Type	Dynamic	Dynamic
Driver Size (mm)	9.7	12.4
Weight (g)	14.30	4.30
Foldable	-	No
Number of Drivers	-	1
Weight With Case (g)	-	47.3
sound features
Impedance (Ohms)	28	-
Active Noice Cancellation	No	-
Frequency Response Range	17Hz-20,000Hz	20Hz-20,000Hz
ratings
Overall NDTV Rating	-	Read Review
Design / Comfort Rating	-
Audio Quality Rating	-
Battery Life Rating	-
Value For Money Rating	-
connectivity features
Bluetooth	-	Yes
Bluetooth Version	-	5.2
Bluetooth Codec Support	-	SBC, AAC, LDAC
Bluetooth range (Metres)	-	10
battery features
Charging Port	-	USB Type-C
Charging Time (Hrs)	-	1.5
Battery Life (Hrs)	-	30
Battery Life (Hrs) Earpieces Only	-	7
Battery Life (Hrs) With Case Total	-	30
Battery Capacity (mAh) Earpieces	-	43
Battery Capacity (mAh) Case	-	440

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