McGill Motorsport now offer as part of their racing Intercoms & Electronics collection the Stilo AE0304 Earmuff Kit for Circuit Helmet, ideal for pairing with a Stilo Circuit Racing helmet such as ST5. This kit is ideal for use with many Full Face Stilo Helmets. 

Key Features
• Ear Muff kit with integrated speakers can be used as an alternative to the ear plugs (where race regulations allow)
• High specification speakers are fitted into comfortable earcups with a connecting plug allowing them to be connected to the Stilo earplug socket
• Noise reducing padded earmuffs
• Directly interchangeable with the standard ear muffs