Review on BT-S3 Motorcycle Bluetooth Intercom, Off-Road Helmet Headset 1000m Communication System - Connect 3 People, Simultaneous Dual-Talk (1 Pack) by John Banks

I've used this for many hours in several different helmets on several different bikes, the velcro mounting option and an inexpensive extra mic/speaker make it easy if you have multiple helmets. The volume is great and loud, the sound quality is very good, I press the buttons with winter gloves without any problems, the rain did not affect the performance at all, the charging time is not fast, but I can do a 9-hour drive that I can do the whole time will have music. I made a few phone calls, they were fine. I wasn't trying to connect or associate with anyone else. Overall excellent value for money!