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Product data
Specifications.
General8
SpecificationSennheiser HD 400U Wired EarphonesboAt 228 Wireless Earphones
- Brand
- Sennheiser HD 400U Wired Earphones: Sennheiser
- boAt 228 Wireless Earphones: boAt
- Model
- Sennheiser HD 400U Wired Earphones: HD 400U Wired Earphones
- boAt 228 Wireless Earphones: 228 Wireless Earphones
- Release date
- Sennheiser HD 400U Wired Earphones: 22nd April 2026
- boAt 228 Wireless Earphones: —
- Type
- Sennheiser HD 400U Wired Earphones: Earphones
- boAt 228 Wireless Earphones: Earphones
- Headphone Type
- Sennheiser HD 400U Wired Earphones: In-Ear
- boAt 228 Wireless Earphones: In-Ear
- Connectivity
- Sennheiser HD 400U Wired Earphones: Wired
- boAt 228 Wireless Earphones: Wireless
- Color
- Sennheiser HD 400U Wired Earphones: —
- boAt 228 Wireless Earphones: Black
- Model Number
- Sennheiser HD 400U Wired Earphones: —
- boAt 228 Wireless Earphones: 228
Product details5
SpecificationSennheiser HD 400U Wired EarphonesboAt 228 Wireless Earphones
- Microphone
- Sennheiser HD 400U Wired Earphones: Yes
- boAt 228 Wireless Earphones: —
- Cord Length (Metres)
- Sennheiser HD 400U Wired Earphones: 1.2
- boAt 228 Wireless Earphones: —
- Driver Type
- Sennheiser HD 400U Wired Earphones: Dynamic
- boAt 228 Wireless Earphones: Dynamic
- Driver Size
- Sennheiser HD 400U Wired Earphones: 9.7 mm
- boAt 228 Wireless Earphones: 10 mm
- Weight (g)
- Sennheiser HD 400U Wired Earphones: 14.30
- boAt 228 Wireless Earphones: —
Sound features4
SpecificationSennheiser HD 400U Wired EarphonesboAt 228 Wireless Earphones
- Active Noise Cancellation
- Sennheiser HD 400U Wired Earphones: No
- boAt 228 Wireless Earphones: —
- Impedance (Ohms)
- Sennheiser HD 400U Wired Earphones: 28
- boAt 228 Wireless Earphones: 32
- Frequency Response Range
- Sennheiser HD 400U Wired Earphones: 17Hz-20,000Hz
- boAt 228 Wireless Earphones: 20Hz-20,000Hz
- Sensitivity (dB)
- Sennheiser HD 400U Wired Earphones: —
- boAt 228 Wireless Earphones: 92
Connectivity features3
SpecificationSennheiser HD 400U Wired EarphonesboAt 228 Wireless Earphones
- Bluetooth
- Sennheiser HD 400U Wired Earphones: —
- boAt 228 Wireless Earphones: Yes
- Bluetooth Version
- Sennheiser HD 400U Wired Earphones: —
- boAt 228 Wireless Earphones: 4.1
- Bluetooth range (Metres)
- Sennheiser HD 400U Wired Earphones: —
- boAt 228 Wireless Earphones: 10
Battery features1
SpecificationSennheiser HD 400U Wired EarphonesboAt 228 Wireless Earphones
- Charging Time
- Sennheiser HD 400U Wired Earphones: —
- boAt 228 Wireless Earphones: 2.5 hours
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