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What we think
The PerfectRec Earbuds or Headphones team Learn more
Updated January 10, 2024·
If you're on a tight budget and need a microphone for calls, the KZ ZSN Pro may be the right choice for you. However, if you're looking for wireless convenience and longer battery life, the Sennheiser HD 350BT would be better despite the higher cost. For an immersive listening experience, Sennheisers typically offer superior sound quality, but they lack the versatility of an in-ear design with a microphone like the KZ ZSN Pro. Consider your priorities: cost and a mic, or sound quality and wireless functionality. Give Feedback
this description is based on the product variant with some specs and product variant with some specs. At the time of writing, the variant with some specs cost some dollars and the variant with some specs cost some dollars.
Advantages of the KZ ZSN Pro (with Mic)
- The KZ ZSN Pro (with Mic) has no clear advantages over the Sennheiser HD 350BT.
Advantages of the Sennheiser HD 350BT
- Good for phone calls
- Excellent for gaming
- Excellent for TV and video
- Very good for air travel
- Very good for podcasts and audiobooks
Key differences
Music
7.7
7.0
The KZ ZSN Pro (with Mic) and Sennheiser HD 350BT are both good for music, though the KZ ZSN Pro (with Mic) is somewhat better.
Gaming
8.0
9.1
The Sennheiser HD 350BT is excellent for gaming, while the KZ ZSN Pro (with Mic) is very good.
Phone Calls
5.1
7.4
The Sennheiser HD 350BT is good for phone calls, while the KZ ZSN Pro (with Mic) is poor.
Podcasts and Audiobooks
4.9
8.3
The Sennheiser HD 350BT is very good for podcasts and audiobooks, while the KZ ZSN Pro (with Mic) is poor.
TV and Video
7.4
9.0
The Sennheiser HD 350BT is excellent for TV and video, while the KZ ZSN Pro (with Mic) is good.
Noise Reduction
5.3
6.0
The Sennheiser HD 350BT is only fair for noise reduction, while the KZ ZSN Pro (with Mic) is poor.
Battery
N/A
33.0 Hours
The KZ ZSN Pro (with Mic) does not have a battery. The Sennheiser HD 350BT has 33 hours of battery life.
Cost
$24
$80
$0
$20
$40
$60
$80
$100
The KZ ZSN Pro (with Mic) has a price of $24 and the Sennheiser HD 350BT costs $80.
Build Quality
9.0
8.2
The KZ ZSN Pro (with Mic) has excellent build quality, while the Sennheiser HD 350BT has very good build quality.
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How the KZ ZSN Pro (with Mic) and the Sennheiser HD 350BT compare to other earbuds and headphones
Spec Comparison
 |  | |
| KZ ZSN Pro (with Mic) | Sennheiser HD 350BT |
GENERAL | |||
|---|---|---|---|
| Price | |||
$24 | $80 | ||
Brand | |||
Brand | KZ | Sennheiser | |
Release Date | |||
Release Date | March 1, 2019 | January 1, 2020 | |
Form Factor | |||
Form Factor | Earbuds | Headphones | |
Connectivity | |||
Connectivity | Wired | Wireless | |
SOUND | |||
|---|---|---|---|
Music Score | |||
Music Score | 7.8/10 | 7/10 | |
Phone Calls Score | |||
Phone Calls Score | 5.1/10 | 7.4/10 | |
Gaming Score | |||
Gaming Score | 8/10 | 9.1/10 | |
TV and Video Score | |||
TV and Video Score | 7.5/10 | 9.1/10 | |
Exercise Score | |||
Exercise Score | 4.3/10 | 6.3/10 | |
PERFORMANCE | |||
|---|---|---|---|
Battery life | |||
Battery life | N/A | 33 Hours | |
Wireless charging | |||
Wireless charging | N/A | No | |
Charging time | |||
Charging time | N/A | 2 Hours | |
Bluetooth version | |||
Bluetooth version | N/A | 5 | |
FEATURES | |||
|---|---|---|---|
Active Noise Cancelling | |||
Active Noise Cancelling | No | No | |
Noise Reduction Score | |||
Noise Reduction Score | 5.3/10 | 6/10 | |
Virtual Surround | |||
Virtual Surround | N/A | No | |
Android App | |||
Android App | N/A | Yes | |
iOS App | |||
iOS App | N/A | Yes | |
Mic Quality | |||
Mic Quality | 7/10 | 8.5/10 | |
BUILD AND DESIGN | |||
|---|---|---|---|
Build Quality | |||
Build Quality | 9/10 | 8.2/10 | |
Comfort score | |||
Comfort score | 7.6/10 | 7.6/10 | |
Size | |||
Size | Large | N/A | |
Weight (headset or single earbud) | |||
Weight (headset or single earbud) | 7 Grams | 238 Grams | |
Microphone style | |||
Microphone style | In-Line | Integrated | |
Shopping
KZ ZSN Pro (with Mic)
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Dig into reviews and images
PrimeAudio
David Becker | 2019
"Undoubtedly the focus and the star of the show, the ZSN Pro’s bass is big, bold and bangin’. The amount of gusto in the low end should satisfy anyone who likes a large lick of bass and even certified bassheads will probably get a kick out of this."
Sennheiser HD 350BT
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Soundguys
Lily Katz | September 2023
"Sennheiser nails just nearly everything about the Sennheiser HD 350BT headphones. Sound quality is excellent, and the high-quality Bluetooth codec support is a rarity at this price point. If you don’t care for high-tech features like automatic ear detection, you’ll be delighted with these portable headphones."
Get a great deal on the KZ ZSN Pro (with Mic) or the Sennheiser HD 350BT
About Sennheiser
A family-owned company, Sennheiser is a German, high fidelity, audio equipment manufacturer founded in 1945. Their consumer audio division is now owned by the Swiss hearing aid and cochlear implant manufacturer Sonova. Sennheiser offers a wide variety of, very high quality, audio equipment solutions, from headphones to earbuds, full sets of monitoring speakers, amplifiers and microphones. They also make what is widely regarded as the best, and most expensive, headphones in existence, the HE-1 Orpheus, costing a whopping $59,000 dollars.
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