I received the Zolo Liberty + wireless headphones as a gift from Anker, which made me very happy, it was a pleasant surprise, and for which I want to express my thanks to @Anker. 
I have been testing it for a long time 
, I use it to train 
run 
or just sit down to enjoy a relaxing music 
The main features are:
APP ZOLO Life
Transparency Sound Isolation
With this function, you can activate the sound of the outside while you listen to your favorite music
Bluetooth 5.0
Pairing is very easy, nothing complicated.
Smart Assistant Support: right earphone
Power Source Micro USB 5V/1.5A
Battery: Earbuds: up to 3.5hrs audio playback.
Charge case: 48+hrs additional audio playback
Sweat Proof IPX5
Sound Quality
The sound quality is very good, and you can even set the equalizer.
You can listen to the music on both sides of the headphones but when you have calls you can only hear on the right side.
At the beginning, I thought that I had damaged the left side because I could not hear my calls on both sides, so I understood that you can only hear the calls on the right side.
The load of the headphones and the case is very durable, sometimes, I leave it for weeks without using it because I forget it somewhere, and when I find it they continue with the full charge.
For me, it’s comfortable when you have it on.
I always carry it with me on my trips in my wallet or my pockets.
I am pleased to know that you liked it 
v
