Topjoy International development Group co., LTD., was founded in 2002, is a high-tech enterprise engaged in the research, design, production, sales and service as a whole, headquartered in HongKong, has the world’s top R & D designers. Topjoy is based on consumer-oriented marketing method and adhering to the “innovation to guide fashion, integrity to build the future” business philosophy, With unique design, leading technology, and first-class production capacity, Topjoy committed to the development of intelligent short walking robot technology, to provide the safe, convenient and funny smart travel products for the human beings. TopJoy has an international standardized production base and its main products are self-balancing scooters, self-balancing unicycle, tablet, cloudbook, 2in1, action cameras.