The best audio in group conversation.Interphone Active is designed to satisfy the motorcyclist who pays attention to the audio performance of his device even in group conference. IQAL technology, Interphone Quality Audio Lab, is designed to guarantee the highest quality sound in all driving conditions.IQAL, Interphone Quality Audio Lab. Unique audio performance.Smart design for minimum encumbrance on helmet.Group conference up to 4 intercoms.20 hour battery life.Connection up to 1 km range.For all helmet models.Connects to all intercoms.Direct access to functions.Automatically adjusts the volume for optimal sound quality.Connection to the smartphone.Music listening and sharing.FM / RDS radio.Smartphone app.It can also be used when it rains.The intercom can be updated using the pc or the mac.High quality stereo sound.Automatic reconnection in case of loss of the BT signal.Ability to manage the smartphone via voice commands of Apple and Android.Bluetooth 4.2.