Ergonomic helmet intercom with Bluetooth connectivity for voice calls and music streaming. Features powerful sound quality by JBL! The box and instruction manual are all included! Great for those with two helmets, this set includes one main unit but two connection units! - Brand: Cardo - Model Name: Blackwire - Included Items: Microphone, speakers, instruction manual, charging cable - Design: Ergonomic design - Features: Bluetooth connectivity, voice calls, music streaming Thank you for viewing.