The Luxa2 Lavi O In-ear Wireless Earphones features the latest wireless Bluetooth 4.0 CSR technology ensuring it brings the best sounding wireless streaming experience to your ears, whatever the activity. Lightweight, ergonomic, comfortable and secure design construction, together with easy to use control interface means you'll be able to enjoy all your favourite tunes within an instant, leaving the rest of your time to focus on your set activity.