Microphone Feature:Input Sensitivity 18WV
Low power consumption,long servicelife
6 sounds siren.
Voice volume is controllable.
Shouting out function,pure voice.
105 decibels,super resounding.
Attached with fixed support,easy installation.
Fits for various motorcycles,autos with 12V working voltage.
Equipment:the red electric wire connects with 12V positive pole;the black electric wire connects with 12V nagative pole.
1 x 12V Loud Horn