Bicycle helmet headset for up to 2 participants, Waterproof IP67, black Compact Bluetooth communication system for bicycle helmets, with a range of up to 300 m. Voice output in various languages, Bluetooth connection to smartphone, making calls, navigation, listening to music, and using voice assistants like Siri and Google Assistant possible. Important ambient noises can still be perceived as the ears remain free. Wind filter for clear conversations, direct communication with a second AERIAL device possible without a smartphone. Thanks to two small magnetic mounts, the AERIAL can be quickly and easily installed and removed. Type Article Version Communication system Main color black Protection class IP67 Transmission standard Bluetooth