Tung Thih Electronic Co., Ltd. engages in the manufacture and marketing of ultrasonic parking assistance systems, vehicle anti-theft devices, car door lock actuators, interior rear mirror system, car video systems, wireless tire pressure monitor systems, body control modules (BCM), and vehicle electric peripherals. It also engages in the research and development of auto-dimming mirrors, I-key systems, TPMS, and head-up displays. Tung Thih Electronic was founded on December 7, 1979 and is headquartered in Taoyuan, Taiwan.