• Compatible models: For Toyota Prius 50 Series Prius PHV. • This unit supports turn signal lever operation when changing lanes, simply move the turn signal once and the blinkers will turn on for a few seconds and then turn off automatically. The blinker off operation is set by time and is not triggered by steering wheel movement. Once acclimated to this type of blinker, the normal ones will seem unbearably stone age. • Press the turn signal lever lightly, the turn signal will automatically turn off after the set duration of winks blink by. Lose the stress of having to return the turn signal stick after each lane change. Our One-touch turn signals can be set for between 3 and 8 winks. • One-touch turn signals can be set between 3 and 8 blinks. • Because of our complete ‘coupler on’ design, this unit is extremely easy to install. Easy to install without prior knowledge!