Features: 100% brand new high quality 7 kinds of alarm sounds: the car alarm speaker can emit 7 kinds of loud and clear alarm sounds. PA system: the car alarm speaker is built in the public address system. You can use this microphone to talk to others in the car. You can also play a joke with your friends. They wont know who is talking. General: applicable to any 12V vehicle: the car alarm speaker can be installed in any vehicle with 12V DC power supply. You can install it in a car, truck, RV, boat, etc. Material: high quality ABS plastic shell + iron frame. Package includes 1 speaker, 1 pa microphone and 1 installation kit. Practicality: practical car alarm handle 80W car alarm horn and microphone PA speaker system emergency sound amplifier, even if you are in a remote place, you can bear a great load and sound. Specifications: Type: car alarm Material: ABS Color: Black Voltage: DC 12V Power: 100W Speaker size: 16.9 * 15.9 * 10.9cm / 6.7 * 6.3 * 4.3rdquo; (L * w * h) PA mic size: 6.2 * 5.8 * 10.3cm / 2.5 * 2.3 * 4.1rdquo (L * w * h) Package including 1 * speaker 1 * microphone 1 * installation kit Note: 1. The difference of manual measurement is 2-3%. Please check the size carefully before purchasing. 2. Please note that slight color difference is acceptable due to light and screen. 3. If you need more,