The Vox 5 Bluetooth headset gives you the freedom of wireless conversations. With a noise-cancelling microphone that filters out background noise, your calls will stay crystal-clear. More than one smartphone to answer to? The multipoint technology allows you to pair the headset with both your smartphones simultaneously. The ergonomic design offers complete comfort during prolonged wear, while the ear hook keeps the headset firmly fixed in your ear. Bluetooth version: v4.2 Wireless range: Up to 10 m Frequency: 2.4GHz, Class 2 Supported profiles: A2DP 1.2, AVRCP 1.4, HFP 1.6, HSP 1.2 Multipoint technology: Pair and maintain connections with two phones and answer calls from either phone Microphone frequency range: 50Hz～20KHz Microphone sensitivity: -85dBm Speaker: 10mm Talk time: Up to 4 hours Standby time: Up to 120 hours Charge time: Approximately 2.5 hours Charge connector: Micro-USB Bluetooth pairing name: Tellur Vox 5