The developers employed a special analyzing system to filter the environmental noise, which results in a remarkable improvement of the quality of sound. You won’t have to raise your voice even in the crowded environment of city streets so that the other person could hear you. The headset weighs 12g and measures 63.2 x 16.7 x 10 mm. The full battery charge is enough to provide for 5 hours of talktime and 100 hours of standby. The i.VoicePRO headset is compatible with Bluetooth v2.1.