This was a pure nostalgic and spur of the moment purchase since my first IEM was Soundmagic E30. I was looking for a pair of Bluetooth earphones to use while commuting to work and these were on sale at the time. SoundMagic E30 sounded way better for the price range and I was hoping a repeat of the same with these.
Build: The neckband is quite comfortable and light. I wear it all day and it hardly feels itchy. The build quality looks fragile but its tougher than it looks but these are not the most durable in terms of build quality.
Sound: Bass is tight, not bloated and sub bass is deep. But be warned that there is significant sibilance while playing sub bass at higher volumes. The earphones are not at all forgiving so listen to well recorded/mastered songs. The Bluetooth connection is stable most of the time but it drops out of the blue for no reason. I dunno what advantages are provided by 5.0 technology 4.2 but i hardly perceive any improvement.
Accessories: Good noise isolation but tips provided are garbage. Battery life is insane. Single charge lasts for one week for me.
Overall i'm satisfied with my purchase. Props to Headphone Zone Team for fast shipping and using a reliable courier service. However, the warranty contact info for the reseller/manufacturer is out dated and requires updation.
Bonus tip: Hold the middle button for 30 seconds to reset the earphones and pair again if it is not pairing after a connection drop.

I am an earlier owner of E10M and E10C wired earphones from Soundmagic. Purchased E11BT and listening to them I can say that they sound Excellent. Balanced sound across all spectrums. Bass is adequate and not too overpowering mids and lows are perfect. Recommended for those who want excellent sound without investing a lot of money. Only one negative in my view the wires connected are too long and tend to hang around your cheeks otherwise excellent overall

The earphones sure does a good job with taking a call and listening to music with good bass. The best part of the earphones is the battery life. It lacks caller id information during an incoming call and very short neckband whereas the wire is of adequate length.

The sound is clean and punchy , you can adjust the equaliser to get an even more punchy bass , great noise cancellation and honestly worth the build

Well after returning the soul byrd , I settled for this and boy i dont regret coming back to soundmagic again.
At first , they sounded just average but after using it for 2 days , they sort of sound better now with much more balanced sound .
Bassheads stay away from it and keep stalling around ur sony headphones :P

Outstanding performance of sound and puncy bass, call quality is also fine but slightly voice is low But can hear clear.. Build quality of wire is only poor it's not upto the the mark

I bought two of these - One for myself and another for a family member. These sets live u to a high quality and are the best ever I have used till date. Its Dynamic Sound is great and its noise cancellation is the best ever in this price range!!!! Its a 100% must buy product!!!!!

Its almost 4 days that i received my Sound Magic E11bt. So far so good. Range from my connected phone is really excellent going more than 13 metre range. Sound quality in music is really excellent. Calls are very clear and crisp without any noise. Most critical feature Battery seems to be really excellent. I still need confirm by doing the complete observation in a week or so.