This new model J&M Elite BT-05 series Bluetooth helmet headset has been designed for installation into most (1/2) shorty style helmets. This headset features our miniature extra-high-output AeroMike® VI boom microphone, high-intensity helmet speakers mounted inside our custom insert section and new full-featured BT-05 Bluetooth control head with easy to install clamp-on mounting system. Includes JM Corporation’s propriety Bluetooth 5.0 software package with improved on-highway volume levels and smoother operation with the latest versions of the iPhone and Android operating systems. The BT05 elite series custom Bluetooth headset installation also includes a no-charge upgrade in the fall of 2023 to our new BT06 control head, allowing for expanded software options.