Hop is a a ‘smart’ suitcase that follows you. It is controlled via your smartphone and will follow the user at a constant distance.
The Hop! suitcase functions by 3 receivers and a controller will interpret the signals by calculating the phone’s current position relative to the suitcase.
If the signal is lost, you will be alerted by the vibration of the phone and the suitcase locks itself.
For some reason the system reminds me of R2-D2…
source Hop! suitcase