Because bigger battery life means bigger batteries, five hours before charging is the maximum we've seen any true wireless headphones offer. (thewirecutter.com)
Very good specs however as its name suggests «mini», screen should have been of 4.1 - 4.5 inch with a little bigger battery life. (gogi.in)
Keeping this in mind Motorola has informed that is launching a newer model that is made for bigger battery life. (newgadget.org)