I recently brought these when they became available on Amazon for 15 bucks....at that price it's a no brainer. This is my unbiased review.
Upon receiving these I am greeted with the standard Anker blue and white packaging.....I really wish they would have stuck with the white and yellow/gold they had for the Zolo packaging. The Zolo packaging was different and expressed a higher level of quality that the standard blue and white does not.
Once opened up you are greeted with a carry case, inside this semi-soft/hard case is the new spirit x headphones. These headphones, despite the packaging feel and look very premium. They are made of a combination of rubber and plastic, the rubber coating is rather subtle and covers the earhooks that help secure these to your ears.
The cable that connects the two sides is well made, it has a pass through puck which helps control the extra cable and slack. I have a 21 inch neck and I still had to use the puck to control the extra slack, there is also a clip so you can clip it to your shirt or whatever to also aide in cable control.
I paired these with my Samsung Galaxy S9 plus, pairing was literally within seconds. I turned my bluetooth on my phone on, turned the spirit x on and clicked on them and bam they were connected.
The ear tips and earwings that came attached did not fit my big ears, so I had to upgrade them to the large size that came with them. The ear wings were a nice touch as it helped secure and seal the headphones better than just the eartips like other similar style headphones. One thing I liked is how well these sealed to my ears once I got the earwings and eartips sized for my ears.
Sound quality wise, these get somewhat loud...imo they could be louder, but because they seal of the outside noise they are loud enough for most people.....I'm just deaf. These accurately reproduce the highs and lows of classical Jazz music, from the saxophone to the bassline I was impressed. I compared these to my soundcore surge headphones, which those got loud and you could hear and feel the bass, but these are better able to reproduce the sound and vocals associated with smooth jazz. Switching up to rap and rock, these equally impressed me. The bass is easily heard, although not felt like I do with the surge.
Over the course of using these for about a week now, they have only gotten better. As the drivers got broken in I can hear more of the vocal range and the bass is more subtle and not abrupt. Overall, I really like these and will continue to use them over the surge. I have thoroughly put them through the paces with me sweating like crazy at work and also at home through workouts, these have seemingly survived thanks to their sweat guard and nano coating technology. Only time will tell how well these hold up to sweaty workouts.
For those looking to get a new set of headphones, I would definitely recommend these to others especially at the price point I got these. Feel free to ask any questions and I will answer to the best of my ability