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1 / 9Sennheiser
Sennheiser HD 350BT
Headphones for anyone who doesn’t want to choose between sound quality and convenience.
MSRP
$119View on Amazon
Manufacturer's suggested retail price at launch. Check retailers for current availability.
Noise Isolation
3.4/ 10
3.4
0.010.0
A 3.4 puts its noise isolation in the bottom quarter of over-ear headphones we've measured.
Measured on 86 of the 239 we've cataloged.
Key specs
Battery Life Wireless
33.82 hBelow average33.82 h
11 h100 h
below average for over-ear headphones — based on 156 of 239 we've cataloged.
Charging Method
USB-CMost commonUsb-c88%Micro usb9%Others3%
Usb-c is the most common — on 88% of the 138 over-ear headphones we've cataloged (of 239).
Bluetooth Version
5Most common5.029%5.326%5.216%5.411%
5.0 is the most common — on 29% of the 147 over-ear headphones we've cataloged (of 239).
Connection Type
Wired-3.5mm48%Bluetooth44%Wired-usb-c7%Others2%
Bluetooth appears on 44% of the 239 over-ear headphones we've cataloged (of 239).
Battery
- Battery Life Wireless
- 33.82 h
- Charging Method
- USB-C
- Full Charge Minutes
- 120 min
- Battery
- Yes
- Fast Charging
- No
Connectivity
- Bluetooth Version
- 5
- Connection Type
- Bluetooth wireless
- Bluetooth Codec
- SBC, AAC, aptX, aptX LL
- Multipoint Devices
- 2 devices
- Headphone Jack
- No
- USB Charging
- Yes
Design
- Weight
- 238 g
- Color Options
- Black, white
- Ear Pad Type
- Leatherette
- Foldable
- Yes
- Wearing Time Max
- 2 h
Build
- Material Chassis Primary
- Plastic
Features
- Companion App
- IOS + Android
- Control Type
- Physical buttons
- Eq Customization
- Full parametric EQ
- Auto Pause
- No
- Voice Assistant Support
- Multiple
Microphone
- Count
- 2
- Microphone
- Yes
- Type
- Dual microphone
Sound
- Acoustic Design
- Closed-back
- Ambient Mode
- Standard
- Driver Type
- Dynamic driver
- Frequency Response
- 18-22000 Hz
- Frequency Response High Hz
- 22000 Hz
- Frequency Response Low Hz
- 18 Hz
- Frequency Response Signature
- Thin, laid-back, airy
- Impedance
- 8 Ω
- Max Spl
- 108 dB SPL
Identity
- Model Number
- HD 350BT
Release
- Date
- 2020-01-07
- Msrp Usd
- 119 USD
- Year
- 2020
SoundGuys review
Read the full review ›Isolation3.4
Battery life9.7
Comfort & fit8.0
Connectivity7.0
Design6.9
Portability7.7
The verdict
The Sennheiser HD 350BT sounds great, but it isn't perfect. The company nixed the headphone jack, so Bluetooth streaming is your only playback option. These headphones are lightweight and portable, but the narrow ear pads may prove uncomfortable for a great many listeners. If you want to support the Sennheiser brand but need a more comfortable build, become acquainted with the Sennheiser PXC 550-II.
✓What we like
✓Compact, travel-friendly design
✓Bluetooth 5.0; SBC, AAC, aptX, and aptX LL support
✓Sound quality
✓USB-C charging
✕What could be better
✕Finicky Bluetooth multipoint connection
✕No wired connectivity
✕Ear pads don’t accommodate large ears
✕Lacks fast charging
✕Poor button layout
Features & Opinions
More from the team ›Commentary and deep dives from the SoundGuys editorial team.
The Sennheiser Momentum 5 earbuds make your AirPods look like e-wasteDead batteries kill more earbuds than anything else. Sennheiser just fixed that.
Adam BirneyManaging Editor3 headphones I would buy instead of the AirPods Max 2These premium headphones deliver class-leading ANC, longer battery life, and more flexibility for less money.
Dave CarrVideo Producer/WriterThe end of budget audio's best bargain: RIP HD 6XXIt was one hell of a run.
Christian ThomasEditor-at-largeWired vs wireless headphones: Which should you buy?Wired headphones do not automatically sound better.
Tom TriggsContributorThe 5 best headphones to look forward to in 2026Strap in — we're in for a wild year.Tom TriggsContributorDon't buy wireless headphones without USB audioIt's way past time.Christian ThomasEditor-at-largeI've reviewed headphones for over a decade: Here are 5 things I wish they did differentlyHeadphone companies: help me help youChristian ThomasEditor-at-large5 ways headphones are going to change in 2027Here's where things are headed.Christian ThomasEditor-at-large
Adam BirneyManaging Editor3 headphones I would buy instead of the AirPods Max 2These premium headphones deliver class-leading ANC, longer battery life, and more flexibility for less money.Dave CarrVideo Producer/WriterThe end of budget audio's best bargain: RIP HD 6XXIt was one hell of a run.Christian ThomasEditor-at-largeWired vs wireless headphones: Which should you buy?Wired headphones do not automatically sound better.Tom TriggsContributorThe 5 best headphones to look forward to in 2026Strap in — we're in for a wild year.Tom TriggsContributorDon't buy wireless headphones without USB audioIt's way past time.Christian ThomasEditor-at-largeI've reviewed headphones for over a decade: Here are 5 things I wish they did differentlyHeadphone companies: help me help youChristian ThomasEditor-at-large5 ways headphones are going to change in 2027Here's where things are headed.Christian ThomasEditor-at-largeMore Over-Ear Headphones
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