Had to altos and I have two tempos both sunglasses the altos are cheaper than dollar store fit and finish big time 2 One died exactly one year after purchase so I have one although left the app is a different story I've never been able to get the app to properly work 100%. It's always been disconnecting and shutting down disconnecting and shutting down enough said fix it bose you released a new one and it does the exact same thing shuts downs locks up and stopped working says you don't have it