How it‘s being inspected?

First,  Check its authenticity via its website or App , as per video shows.

Second, Fully charge the battery and then put it aside for over 12 hours.

Third, Check if it holds the battery which is 100% full, then do a through function inspection including buttons , touch screen, are working properly and sound quality is well.

Forth, Remove all previous user date from the app.

Fifth, Visual check  and then clean the unit and pack it.