Review on Fodsports M1-S Pro 2000m Motorcycle Bluetooth Headset: 8 Riders Group 🎧 Intercom, Handsfree, Stereo Music, GPS - Universal Bluetooth Helmet Intercom Communication Systems (1pck) by Robert Aan

I can only think of 2 reasons why they would get a 5 star rating.1. Elderly people who ride Golden Wings with wind deflectors installed and never drive faster than 80 km/h.2. Liars Dynamics - junk. There is no bass but squeaks at high volume. After 40 km/h you don't hear anything, nothing at all. Even with a full helmet it sucks. Used once and returned. Not worth the price. And paying 500 for a branded set isn't worth it either. Here's great advice. Search Amazon for headphones called KLOKOL. 20 Euros. The earphones are small enough to easily put on and take off the helmet and simply plug the microphone into the helmet. And Eureka. High quality sound, loud even at high speeds, you can easily call and talk to someone. $20 off the price of these.