- When you driving car or motorcycle, for both wearing helmets, or the speed is very high, or to exercise various situation in a very noisy place, use this interphone can effectively communicate with the other one to avoid head turning problem.
Power supply: 2 x AAA batteries(not included)
Frequence: 50-20000Hz+3 db
Working Temperature: -20°C~50°C
1 x Motorcycle communication system host
1 x Power cable
2 x Earphones