. 
• process of purchasing online was a breeze; discount for online purchase was a great bonus
• sound quality (according to my preference) is on the sweet spot; perfect combo of lows (bass-ier, just how i like it), highs, mids; i use it on a windows machine so i have more control over the eq and surround sound using the nahimic software
• anc works well; my ac unit is next to my desk and it reduces the noice coming from it
• the lcd control on the case is very functional and easy to use
• battery life is better than my previous earbuds (airpods, skullcandy)
• fit of earbuds was neither loose nor tight, was just perfect
For back up earphone - this one can be considered.
I use this to play along with when I practice guitar. Very convenient, handy and user friendly. The sound isn't too bad either!
Product quality is great! Thank you!