Sony Ericsson Bluetooth Car Speakerphone (Black) Lightweight  weighs less than 10 grams Easy pairing and operation  pairs automatically with your Bluetooth-enabled device and includes answer/end call, voice dialing, last number redial, reject a call, call hold/call wait, mute and quiet mode functionality No-hook wearing style  includes 3 sizes of Jabra ear gels for a snug fit without an over-the-ear hook Rechargeable battery  charge from AC power supply or PC with USB cable Supports Bluetooth 2.0  includes a 10-meter range