Music Apollo B2 Classic Vintage Car Bluetooth Speaker Inbuilt Microphone for Calling, Supports Memory Card , Aux, USB

1. Briefly play (pause) music/answer the call;

2. Double (right) headphones double short press to reduce (increase) the volume;
3. The left (right) earphone presses 3  the next (last) music;
4. Easily wake up Siri
5. Cancel the open situation and close it to the closed situation;