Work headphones 17-P for helmets. These headphones are compatible with the models:

• 5-RS
• 5-RG (Model 5-P)
• Tirreno TX, TXR (Model 5-P Tirreno)
• 5-R Minero (Model 5-P Minero)
• Curro (Model 5-P Curro)

Their features include:

• H = 31dB
• M = 28 dB
• L = 21 dB
• SNR = 30 dB