In the middle of the top of the helmet. According to relevant information, on April 25, 2022, Meituan Delivery released the Meituan MT-K2 smart helmet with a camera in the middle of the top of the helmet. This is also the second-generation smart helmet launched by Meituan. According to the person in charge of R&D at Meituan, at the hardware level, the helmet is equipped with ventilating paddles, Bluetooth headsets, microphones, self-sensing taillights and other accessories based on traditional helmets. It has undergone various rigorous tests and meets national standards. Correspondingly, the software level is equipped with a voice assistant. After binding with the rider's mobile phone and App, the helmet can be used to complete operations such as making and receiving calls and receiving system dispatch information.