The features of Parrot car handsfree kits are phenomenal; External double microphone, direction is adjustable, echo cancellation, advanced noise reduction, multiple connectors: iPods (from fifth generation), USB and Line-In, play music from any Bluetooth Stereo compatible devices, digital Class-D 20W amplifier, automatic phonebook synchronization, user-independent voice recognition, number of contacts: up to 8,000 in total; up to 1,500 per paired phone.