Tandem receivers provide radio connections on two frequencies, including telemetry. As a result, the transmission is less sensitive to connection failures and at the same time provides greater range.
A new addition to the Tandem series is the X18 radio. Modern design, excellent ergonomics and innovations in the form of touch screens or a Tandem module make this radio undoubtedly an interesting model. Of course there are lever drives with Hall probes, a wireless teacher / student, charging via USB and batteries with a single capacity of 4,000 mAh.