Shoei - Sena SRL3 Bluetooth Intercom Communication System Suits GT-Air 3 & Neotec 3Shoei Sena SRL3 Bluetooth Intercom Communication System Suits GT Air 3 & Neotec 3 Rich sound, extensive functions, perfect integration into the helmet shell thanks to minimal device size. The SRL3 communication system from Sena provides the best entertainment and up to date information while riding, while keeping a pleasant visual profile. The SRL3 was specially developed for installation in the inner recesses of the helmets Shoei Neotec 3, Shoei GT