A faraway friend, hello, nice to meet you.Very honored to your choose and buy our products.We are a professional unicycle, lithium trams agent company.Acting brand has Gotway, Rockwheel, Kingsong, Inmotion, Airwheel, IPS, Minigogo.The company has the professional maintenance.Here to buy the car, you don't have to worry about, the general problem we can through the video to let you learn how to solve the problem.As long as it is quality problem, we will send you spare parts.Each car in, we will check the operation condition of his, charging status, as well as the APP connection.On the day of the received the car out of the box, please check.Let's get to know you satisfied with our products?Have any situation, please do not hesitate to contact our customer service.In principle about after-sales unicycle is the controller, motor warranty for one year, the battery warranty for half a year.Controller, battery has the bad situation, would you please send parts back to China, the amount of customs declaration cannot be more than $30, freight can be negotiated.Wish you a happy shopping here.