BT-S2 Single 2.4GHz Bluetooth V3.0 Interphone Headsets for Motorcycle Helmet, Auto Answering, Support FM, Intercom Distance up to 1000m CHUNGHOP The volume can be adjusted

The volume can be adjusted freely

Color: Black

5W peak output

all mobile phones can be used

BT-S2 Single 2.4GHz Bluetooth V3.0 Interphone Headsets for Motorcycle Helmet, Auto Answering, Support FM, Intercom Distance up to 1000m CHUNGHOP The volume can be adjustedThe InterPhone is a Bluetooth Headset designed for the motorcycle rider and passenger who wish to have clear and reliable wireless communications while riding. This headset is compatible with Bluetooth cellular phones and can be suited to any sort of helmet for motorcyclists. 1. Wireless headset for bluetooth enable cell phone at a range of up to 10 meters. Bike to bike intercom for rider& passenger or two separate bikes up to 800 1000 Up to 10 hours