Detailed Product Description Mono bluetooth earphone,U&I-03 super long talk time Main Advantages:1. Changeable faceplate style, total 4 pcs ... if the link disconnects, For instance,you turn off the eadset, when you turn on it, the headset will automatically establish the ... lost pairing situation more than 20 minutes, the headset will turn off automatically to save power. 9. Voice-dialing,re-dialing ...