The SRL2 Bluetooth Communication System is expertly designed in collaboration between Sena and Shoei, specifically for the new Shoei GT-Air 2 and Neotec 2 helmets. The sleek, flat unit is concealed from the outside, providing a streamlined look for the helmet. It features an intuitive 3-button control unit and comes with improved, detachable microphone options. Pair your smartphone to listen to music, receive GPS instructions, make phone calls, and much more. Engineered with a dual Bluetooth chip, the SRL2 allows communication with up to 7 other riders over a distance of up to 1.6 km in open terrain. The SENA app enables easy settings adjustments and quick access to the user guide. Technical Specifications: Up to 10 hours of talk time, Bluetooth 4.1, Audio Multitasking, Voice Commands, Intercom range up to 6.4 km, Eight-way Intercom, Music Sharing, Advanced Noise Control, FM Radio, Remote Control compatibility.