Suitcase that follows the owner without tugging!

Are you scared of tugging heavy baggage while on holidays or official tour?  Not any more...a new generation suitcase controlled by a Bluetooth device comes to your rescue;  it  moves with you (your smartphone literally) faithfully without tugging. 

The creative suitcase named "Hop!" has been developed by a Spanish inventor.  The suitcase follows the master wherever he goes.  The bag locks itself automatically and vibrates its owner's phone, if the signal its lost.