Acoustic Vehicle Alerting System (AVAS) is a mandatory alert device that to remind pedestrians of safety when vehicles are driving at low speed in pure electric mode. TEMB is one of the earliest research and development companies in China, and participated in the drafting and setting of AVAS National Standard, and is the earliest manufacturer to use automatic production line assembly in the industry. The AVAS was evaluated as "International Advanced" by China Association for Promotion of Private Sci-Tech Enterprise which is in charge of the Ministry of Science and Technology, and put on record.