Product Name: Traffic Engineering ProductsModel Number: TCP-01, ZHB-01, JJD-02, ST-01, CFP-3, LZ-01Place of Origin: ChinaFeatures: 1) Using the auto carrying power as the power supply, safe and easy 2) Low power consumption, long time working 3) The board body is solid, firm and light 4) The signal is obvious and visual from very far away