This is a Stereo Retractable Bluetooth headset with below features

• Outstanding Bluetooth stereo audio quality with apt-X support.
• Can enjoy the music in two ways: With extra earphone cable with the micro USB plug or connect the own 3.5mm earphone with the connector
• Incomming call alert and out of range alert (vibration)
• Multi-point connection with two Bluetooth-enabled devices.
• Automatic reconnection with your headset and Bluetooth-enabled devices.
• Works with all iPhones, Samsung phones, HTC phone, Blackberry phones, etc.