Sennheiser CX 300 II vs SoundPEATS QY7

The bass is the highlight of the sound signature. It goes deep and has very good punch too, yet at the same time stays fairly controlled. The mids are present and quite smooth, though not too forward.

The highs do not stand out as amazing, though the level of detail is fairly good.

Overall, a very good sounding pair of in-ear headphones which bass lovers will find to be quite enjoyable.

The headphone cable feels high quality and does not seem like it would break easily. They are also fairly flexible so they should not be too prone to tangles. The strain relief on the connection points of the cable to the earpiece keeps it from detaching easily when yanked.

The CX 300 II come with 3 sets of ear tips in small, medium and large sizes. These are easily interchangeable so you will have some options when it comes to fitting these headphones.

The highs are boosted so they are crisp and airy. While there is not a lot of detail to the highs, they also do not sound fatiguing.
The bass is powerful and goes pretty deep. It does not mess up the mid frequencies though so there is no muddiness to the sound.
The mids are recessed, but you should still be able to easily hear vocals and other mid tones.
These are perfect for those who want their music represented in a fun way, instead of an analytical or a bass heavy sound.

Despite looking bulky, these are actually lightweight. The short connecting cord of the two earpieces further reduces the inconvenience when wearing these.

The earpiece buttons allow you to control music volume as well as pause/play tracks or answer/end calls, so you do not need to take out your smartphone/music player for these functions.

These can play music for 6 hours straight before the battery gets depleted.

The cables used are not just short, but also feature a flat and flexible design, making them quite resistant to tangling.

One of the earpieces has a built in microphone so you can answer calls without the need to take these off.. Also, microphone sound quality is actually pretty good.

Music and calls do not cut off frequently, and the signal stays pretty stable even if there are a number of wireless connections in your vicinity. This helps to minimize annoyance and distraction when these are in-use.

You get a selection of silicone ear tips in different sizes, a micro-USB to USB charging cable, a shirt clip, and ear loops. This adds a lot of value to your headphone purchase.