1.Support all bluetooth devices and phones<br /><br />2.Allow two phones to connect at the same time<br /><br />3.A2DP・support music playing<br /><br />4.Adjust volume using + -<br /><br />5.Control volume with vocal notification<br /><br />6.CSR Chip・bluetooth 4.0・low power consumption<br /><br />7.Pickup/hangup calls・redail the last call<br /><br />8.Yes-Pickup・no-hang up