We Examine the Price/Performance Monster Sennheiser HD 350 BT for You

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Users' Most Preferred Headphone HD 4.40BT Renewed: Here is the HD 350BT

HD 4.40BT, one of Sennheiser's most preferred bluetooth headphones in Turkey as well as all over the world, has been renewed. With its many new features and strengthened structure, HD 350BT was showcased in the market as a new price/performance monster.

As Hifilife, we examined the product down to the smallest detail. You may want to read this article before you buy.

Who is Sennheiser?

Although we do not think it will be much, there may be those who do not know Sennheiser. So let's start with the Sennheiser introduction first.

Sennheiser is one of the most important sound companies in the world, founded in 1945 in Hanover, Germany. Fritz Sennheiser, an engineer, founded his own company right after the Second World War and has written his name in an important place for professionals or everyday users with headphones, microphones, on-stage systems since then.

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Sennheiser's only focus has been on products that have perfect acoustic capabilities, are equipped with constantly updated technologies, and delight audiophiles.

After a little Sennheiser briefing, let's move on to our product review.

First glance

First of all, a white-blue dominant box welcomes us. Sennheiser's previous dark design boxes are replaced by a more spacious design. There is also a "Bircom" hologram on the front of the product. It states that this product is brought by Bircom, the Official Distributor of Türkiye, and it is original.

The contents of the box and the codecs it has are indicated on the side surfaces of the box. In addition, there is a "QR Code" located holographically on the side surface, where you can check the authenticity of your product.

When we look at the bottom surface, there is the serial number of the product, the product code, the place of manufacture and other declared information.

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Box contents:

1 x HD 350BT Headphone
1 x USB-C Charging Cable
1 Quick User Guide

Ergonomics and Usage:

The new HD 350BT has similar ergonomics and handling to its predecessor, the HD 4.40BT. Again, the HD 350BT, which has a very comfortable and thick ear cushion, will not disturb the head even if it is used for long periods of time. In addition to keeping the ears warm during the winter months. This structure of the ear cushions ensures that the earphones passively block the external noise quite well and the music you listen to does not come out in any way.

The Bluetooth headset has a very light weight of 238 g. As it can be understood from the user comments of the previous model, this lightness was one of the reasons that made the product most preferred.

The product can be easily transported by folding it on itself. You can safely carry your bluetooth headset while saving space.

Sound Quality:

We have come to the part that everyone has been waiting for eagerly. How is the sound quality of the headphones?

Sennheiser's HD 4.40BT model was a huge success in terms of price/performance. The HD 4.40BT model, which Sennheiser offers the quality promised for all sound enthusiasts at a price that anyone can buy, leaves its place to the HD 350BT with its improved acoustic structure.

Compared to the previous model, the headphone has a more punchy/pulsed character at bass frequencies. The treble and mid frequencies have always been Sennheiser's strong points. Again, the HD 350BT headset offers a very successful performance.

Songs We Listened:

Whitney Houston - One Moment In Time
Meduza, Becky Hill, Goodboys - Lost Control
The Weekend - Starboy

We can say that the product really performs quite well for its price in many music genres.



The Sennheiser HD 350BT has the aptX codec just like its predecessor, the HD 4.40BT. In other words, we can say that the HD 350BT also transmits wireless audio without loss. Thus, the sound quality stands out noticeably compared to many headphones.

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Unlike its predecessor, the Sennheiser HD 350BT features aptX Low Latency technology that reduces the synchronization between image/audio to such a low latency that human beings can't detect it. Thus, watching videos becomes more comfortable now.

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AAC, SBC, A2DP codecs are also available on the headset.

Noise Cancellation:

Like the Sennheiser HD 4.40BT, the HD 350BT does not have Active Noise Cancellation. However, as we mentioned above, there is no great need for this. The product already has a pretty good passive noise canceling feature, and if Active Noise Cancellation isn't a necessity for you, you can easily choose the HD 350BT in this price segment.

Voice Assistant and Control:

The new focus of Bluetooth headsets coming in 2020 and beyond is "Voice Assistant" support. Sennheiser provides this support in all its newly released models, and HD 350BT also has a button that allows you to activate voice assistants such as Siri, Google Assistant, Alexa.

On the right capsule of the HD 350BT, there is a button that allows you to turn up/down the volume, and a floating button that allows you to pause/start songs and skip to the previous/next song. You can also perform functions such as call on/off and rejection with the same button.

One of the most important features of Bluetooth headphones is the ability to keep more than one device ready for connection in its memory. The HD 350BT can hold up to 8 devices in its memory and easily switch between them.

Battery Life:

The Sennheiser HD 350 BT has a pretty good battery life for a bluetooth headset . It can hold a charge for 5 hours more than its predecessor, the HD 4.40BT. Offering up to 30 hours of use on a single charge in total, the HD 350BT means it needs to be charged almost every 2-3 weeks with optimum usage.

It is enough to leave it on charge for 2 hours for it to be fully charged. You can also perform the charging process with USB-C supported cables. This means easier, faster charging.


The Sennheiser HD 350BT is one of the best price/performance monsters on the market right now. Especially if you are looking for a bluetooth headset that stays under 1000 TL in terms of price and still gives you the full value of your money, your first choice can be the Sennheiser HD 350BT.

Hifilife Review Team

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