Sony Ericson HBH-PV703 designed for wirelessly taking calls from a Bluetooth-enabled device. With a flexible earhook and a single multifunction button that is used for answering/ending calls, pairing, and redialing the last number. It features adaptive frequency hopping technology to reduce wireless interference and has a built-in fast port allowing it to be charged from a Fast Port-enabled Sony Ericsson phone. Its rechargeable battery provides up to 10 hours of talk time and up to 350 hours standby