Without question the worst company I have ever dealt with. £300 hoverboard and kart that after being sent back and forth for repair (at a cost of £15 to me for postage !) they have admitted the board overheats and shuts down and from their diagnostics they say the battery will run for 24 minutes use on a full charge and think this is enough time/value for money for a 10 year old child that wants to play out on it. Customer service is a disgrace and I would highly recommend you shop elsewhere as for the money you pay the products are cheap tat and the customer service reflects this. Stay away........