Usage Tips:7 Siren sounds. The car speaker siren can offer 7 loud loud sounds including horn, fire, ambulance, traffic, police etc. Please do not use the siren when the emergency situation is over. 1 X Wireless Remote: Easy to use, control the sound with the button. Button A: Tone 1 Button B: Tone 2, press to stop siren Button C: Tone 3 Button D: 4 different Tones, press to change tone. INSTRUCTIONS: Siren d power supply with 12V or car battery. The power supply voltage must match the working voltage, and please make sure the cable connection is correct, otherwise it will not work properly. Loud and loud: ePathChina car siren features conveniently sized, yet is clear and loud for its size. Premium Quality: The Siren car siren sound system is made with premium quality materials to ensure maximum strength and durability. durability for long lasting use. Product Material: Plastic Speaker Color: Black Color Of remote control: Black Operating voltage: 12V Power: 100 W Sound level: 120-150 dB Instructions: - Power siren with 12V or car battery. - Button A: Tone 1 - Button B: Tone 2, press to stop siren . - Button C: 3 Tone. - Button D: 4 Tone different sounds, press to change tone. Note: - Not for use as a replacement for professional equipment sirens. - Will not as louder than regular police car sirens. - Do not use on public roads unless you are licensed and authorized to do so. Applications: police car no professional, security, volunteer firefighter, boat. Package weight: 505 G / 17.81 ounces Package dimensions (L * W * H): 180 * 170 * 120 MM / 7.09 * 6.69 * 4.72 inch Package includes: b > 1 x speaker 1 x black remote control