Havit Bluetooth 4.1 technology and CSR8615 chipset, the HAVIT I11 Long Lasting Bluetooth Headset provides crystal clear conversation and sound quality, allow you to talk on the phone or listening music wirelessly.The lightweight and ergonomically designed I11 Bluetooth headset provides comfortable and stress-free wearing experience.With only 3 buttons, the Bluetooth headset can be easily and intuitively used by anyone.The multipoint technology of the Bluetooth headset allows you to pair 2 devices at the same time.