Noise Blackout™ Dual Mic technology Including A330 USB Bluetooth adapter Connection to Bluetooth mobile phone and PC via A330 USB Bluetooth adapter Dual wearing styles with 3rd generation Jabra Eargel™ and flexible earhook Developed for active professionals in the office and in the field Bluetooth 2.0 – up to 10m range The USB Bluetooth adapter is compatible with most soft phones. Talk time: 5 hours Standby time: 250 Hours Weight: 0.35 oz Music Streaming