Key Features 1.Answer Call:Press the Answer key to answer. 2.Reject Call:Press the Answer key and hold it for 3 seconds to reject. 3.Hang up: While in the calling or dialing state, press Answer key to hold this call. 4.Recall:Press twice to recall the number that called in/out last time. Clear Sound:Easily make crystal clear hands-free calls or listen music with CVC noise cancellation technology. Universal Compatibility:Bluetooth Transmitter perfectly works with iPhone, iPad, Samsung Galaxy,Google Pixel and other Bluetooth enabled devices such as MP3,MP4 Player.

For smooth washing of car and cleaning.