Upgrade Parts: Working voltage 58V, power 0.5W, sound pressure 90dB. Upgrade parts for your model car and improve the overall performance. Easy Installation: The diameter of the horn is 30mm, the installation and disassembly are simple, and no complicated tools are required. Multi Sound Mode: Short press to sound the whistle, long press to cycle the police car/fire truck/ambulance sound. Multi Control Mode: You can control the horn manually/remotely to make your model car more realistic. Specification: Item Type: RC mini speaker Material: Electronic components Horn Diameter: Approx. 30mm/1.18in Working Voltage: 5-8V Power: 0.
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