Sennheiser HD 650 vs Samsung Level On Wireless

The sound signature is near neutral but with a little emphasis on the lower frequencies. The bass is slightly forward with good punch and tightness. Explosions will have good rumble, without overpowering the other frequencies.
The mids are warm and clear, adding extra body to the sound. Game dialogue will be easy to hear.
Highs have good clarity, but are not forward in any way, so harshness is minimized.

The H650 is popular for its near neutral sound, which makes it quite versatile. The headphones can give a great casual listening, gaming, and movie watching experience yet are accurate enough for pro audio mixing. They are also lightweight and comfortable so you won't have any issues wearing them for hours.

Clamping force is not too tight. The ear pads and headband feature memory foam which are covered by velour material. The pads feel really soft on the head and allow airflow for minimized heat build-up/sweat.
The headband also features similar cushioning materials and minimizes pressure spots on the head.

The open ear cup design allows the sound to blend with your surroundings, giving it a natural width. It will also be easier to identify the direction of sounds, which can really help immersion.

The HD-650s do not feel heavy at all. They are usable for long music listening, movie or gaming sessions without feeling pain or strain on their head and neck.

While the cable connectors are proprietary, they can easily be removed from the ear cups with a firm pull. The popularity of these headphones means that there are a lot of aftermarket cables that can be bought.

The Level On Wireless headphones deliver very good sound quality which is unusual for wireless headphones at this price range. Noise cancelling is also quite good, and can block out a good bit of noise from mixing in with the music.

The Level On Wireless does a pretty good job of reducing the ambient noise that may mix in with the music. A good chunk of high frequency noise is canceled, but you may still hear some loud, low-frequency rumbles like engine noise for example.

When noise canceling is activated, the Level On's low-end performance is also increased. Bass hits sound fuller and have a bit more boom. This effect is great for bass lovers who want extra thump out of their music.

The Level On Wireless delivers a very good level of detail for Bluetooth, noise-cancelling headphones. The highs are forward and quite detailed so you should be able to hear the nuances of your music that you won't get from many other wireless options in the price range. The mids and bass are decent providing good punch and warmth.

Your music won't sound tinny with these headphones.

You won't have too much issue wearing these headphones for a number of hours straight. The Level On's earpads are fairly large for on-ear headphones and are quite soft as well. Clamping force is just right, and helps keep the headphones in place without compromising comfort.