1. Large speaker mouth, sound transmission farther 2. The base is made of metal, durable and rust-free 3. Specially designed speaker pipe, easy to install 4. Suitable for 12V and 24V cars 5. Power: 30W 6. Impedance: 4 Ohm 7. Sound level: 300dB 8. Current: 10A 9. Working temperature: -40~80 degrees Celsius
