The Cardo Spirit Duo motorcycle communication system double pack offers a universal Bluetooth intercom with the latest technology. It connects up to 2 drivers in a 400m range with a Bluetooth 5.2 chip. It is fully waterproof for use in all conditions and climates with a two-year guarantee. Cardo's over-the-air software update provides easy updating via the Cardo app, with updates also available via the USB cable. A 32mm speaker offers automatic volume control for fantastic audio in all conditions. Universal connectivity gives versatility, plus the Spirit Duo provides 10 hours of talk time with a fast charge. 2 device coupling (telephone / GPS, music streaming (no radio) and USB type C connection, an operating temperature: 20 to 55 C / 4 to 131 F, two channels for mobile phone and GPS and TFT connectivity are all handy features. It features up to 400 m / 0.25 mi with a user interface with multilingual status messages. The main unit measures: Height: 47mm, Length: 78 mm, Depth: 19mm and Weight: 35 g. The speaker dimensions are Diameter: 32 mm, Depth: 10 mm. The battery pack offers 10 hours of talk time with up to 2 hours of charging time - with a fast charging time of 20 minutes and two hours of talking time. Standby time is ten days. The box contains 2 x Cardo Spirit communication devices, 2 x Cardo speaker pairs, 2 x Cardo microphones, 2 x Cardo gooseneck microphones, including Velcro pads.