Hi! I haven’t tested it for prolonged continuous use but on and off usage, on this trip, it lasted for half a day. You can bring a power bank to charge it in between use, if needed.
Bakit po kaya yun sakin, natatransfer naman sya sa phone and tablet pero pag pinlay, all black lang sya tapos yung iba okay naman, yun nga lang sobrang lag tas yung audio nya parang nagvvibrate.