2-way BT intercom. Two riders at a range of 400m / 0.25mi. Thin 32mm speakers and an advanced processor for an immersive sound. Waterproof: No matter what you throw at it, your waterproof Spirit will take the beating and keep you connected. Rain, shine, mud, dust, or snow. Over-The-Air Software Updates: Always keep your unit updated via the Cardo Connect App. Download over-the-air software updates whenever a new version is available. Universal connectivity: SPIRIT connects with any other Bluetooth headset of any brand. Connection is easy and painless. Automatic Volume: Automatically adjusts your sound volume based on the outside ambient noise. Music Streaming: All the music you ever wanted is streamed directly from your smartphone. Control, share, and experience your favorite tune on the road. Robust and universal USB type C for easy connections to any device. Phone and GPS: Make calls and control your GPS with a touch of a finger or the sound of your voice. Fast Charging: Running out of battery? Get 2 hours talk time battery after 20 minutes of charging. Robust and universal USB type C for easy connections to any device.