Terrano XT - Tandem Package (2 units) for $560
The Terrano XT is a wireless communication system that is Bluetooth & USB rechargeable. The sleek device is durable and weatherproof for all your riding adventures. Easy to install, intuitively operated with a full 13 hours of talk-time and one week on standby, with a range up to 1200 meters.
HOTT Com -
Wired communication system for tandems.Two Headsets and receiver - $89.00