A comparison of specs, key information, reviews, and best pricing from top retailers
Last updated -- hours ago | Report incorrect information
Timeless
Company ProductName Specs




HD 250BT
Company ProductName Specs




What we think

Chevron down
PerfectRec Logo
The PerfectRec Earbuds or Headphones team Learn more
Updated January 10, 2024·

If sound quality is a priority and you're willing to pay more, the 7hz Timeless earbuds generally offer superior audio fidelity due to their planar magnetic drivers, ideal for audiophiles who want to hear every detail in their music. However, Sennheiser HD 250BT headphones are a budget-friendly option with good sound quality, a robust build, and Bluetooth connectivity, making them more versatile for everyday use, including outdoor activities or commuting. They also have the convenience of being wireless, which the 7hz Timeless, being wired earbuds, lack. Consider your budget and whether wireless convenience or audiophile-grade sound is more important to your listening experience. 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 7hz Timeless
  • Very good for music
Advantages of the Sennheiser HD 250BT
  • Good for phone calls
  • Very good for gaming
  • Very good for TV and video
  • Very good for air travel
  • Very good for podcasts and audiobooks

Key differences

Chevron down

Music

8.6
Timeless
HD 250BT
6.5
The 7hz Timeless is very good for music, while the Sennheiser HD 250BT is only fair.

Gaming

6.6
Timeless
HD 250BT
8.8
The Sennheiser HD 250BT is very good for gaming, while the 7hz Timeless is only fair.

Phone Calls

4.3
Timeless
HD 250BT
7.2
The Sennheiser HD 250BT is good for phone calls, while the 7hz Timeless is poor.

Podcasts and Audiobooks

6.8
Timeless
HD 250BT
8.1
The Sennheiser HD 250BT is very good for podcasts and audiobooks, while the 7hz Timeless is only fair.

TV and Video

7.8
Timeless
HD 250BT
8.4
The Sennheiser HD 250BT is very good for TV and video, while the 7hz Timeless is good.

Noise Reduction

5.3
Timeless
HD 250BT
6.0
The Sennheiser HD 250BT is only fair for noise reduction, while the 7hz Timeless is poor.

Battery

N/A
Timeless
HD 250BT
25.0 Hours
The 7hz Timeless does not have a battery. The Sennheiser HD 250BT has 25 hours of battery life.

Cost

$170
Timeless
HD 250BT
$70
Product image
Product image

$50

$100

$150

$200

$250

The 7hz Timeless has a price of $170 and the Sennheiser HD 250BT costs $70.

Build Quality

8.5
Timeless
HD 250BT
9.0
The Sennheiser HD 250BT has excellent build quality, while the 7hz Timeless has very good build quality.
Image of Earbuds & Headphones
Let Us Help Find Your Perfect Headphones
Find your new headphones

Give feedback

We’re constantly working to improve.

How the 7hz Timeless and the Sennheiser HD 250BT compare to other earbuds and headphones

Chevron down

Spec Comparison

Chevron down
7hz TimelessSennheiser HD 250BT
7hz TimelessSennheiser HD 250BT

GENERAL

Price
$170
$70
Brand
7hzSennheiser
Release Date
August 1, 2021May 1, 2021
Form Factor
EarbudsHeadphones
Connectivity
WiredWireless

SOUND

Music Score
8.6/106.6/10
Phone Calls Score
4.3/107.2/10
Gaming Score
6.7/108.9/10
TV and Video Score
7.8/108.5/10
Exercise Score
4.3/106.2/10

PERFORMANCE

Battery life
N/A25 Hours
Wireless charging
N/ANo
Charging time
N/A3 Hours
Bluetooth version
N/A5

FEATURES

Active Noise Cancelling
NoNo
Noise Reduction Score
5.3/106/10
Virtual Surround
N/ANo
Android App
N/AYes
iOS App
N/AYes
Mic Quality
N/A8.5/10

BUILD AND DESIGN

Build Quality
8.5/109/10
Comfort score
7/107/10
Size
LargeN/A
Weight (headset or single earbud)
5.5 Grams125 Grams
Microphone style
N/AIntegrated

Shopping

Chevron down

7hz Timeless

See more

Dig into reviews and images

Headphonesty

Kazi Mahbub Mutakabbir | May 2023
"7Hz picked a bold name for the Timeless and frankly, got very close to justifying their word choice. Most importantly, the Timeless are good to go in stock form, so you don’t have to worry about source-matching and such. I can recommend the 7Hz Timeless to those who do not mind a dash of brightness up top, want a taste of planar in IEM form, and want one of the most resolving pair of earphones in the $150 - $300 price range."

Sennheiser HD 250BT

See more

Dig into reviews and images

Headphone Check

Pete Scholßnagel | 2020
"As a lightweight, robust audio provider with a long battery life, the Sennheiser HD 250BT offer a lot for their price: very good Bluetooth codecs, an app connection and an extremely understated design. These headphones may not be among the most comfortable, but they deliver adequate sound – without overdriving or distortion."

Get a great deal on the 7hz Timeless or the Sennheiser HD 250BT

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.

Give feedback

We're constantly perfecting our model

Earbuds or Headphones guides you might be interested in

Chevron down

FAQs

Chevron down

FAQs about earbuds and headphones

Questions about PerfectRec >

Why trust us

Chevron down
This information was produced and vetted by the PerfectRec earbuds & headphones team. We are a product research and recommendation organization that meticulously reviews and evaluates the latest earbuds or headphones information and makes it digestible for you.

By the numbers

108
Earbuds and headphones evaluated
11,340
Earbuds and headphones stats compiled
15
Proprietary Earbuds and headphones ratings developed
68,300
Recommendations made
10,245
Consumer hours saved

About the Earbuds or Headphones team

Joe Golden, Ph.D

CEO and Earbuds and Headphones Editor
Joe is an entrepreneur and lifelong electronics enthusiast with a Ph.D in Economics from the University of Michigan.

Jason Lew

Staff Expert & Software Engineer
Jason is a staff expert and software engineer that has been making laptop recommendations for 7 years and moderates one of the largest laptop subreddits.

Chandradeep Chowdhury

Staff Expert & Software Engineer
Chandradeep is a staff expert and software engineer and expert in televisions and monitors. He’s been making monitor recommendations for ten years.

Luis Torres

Earbuds and Headphones Expert
Luis is a Mexico-based headphones expert. He’s been making headphone recommendations for five years and has close to 100 pairs in his personal collection.

Featured in

Color LTT LogoGeekwire logo9to5 Mac logoPhone Arena LogoColor Daring Fireball logo