With the Graupner Micro-USB OTG cable you can connect and transfer data between any compatible Android Smartphone when using the Graupner HoTT viewer (available on Google Play store).
The cable connects the mz-12 PRO, mz-16, mz-32, mc-26 and mc-28 radios to the Android Smartphone without the need for a Bluetooth device.
This cable is an excellent addition when using the Smartphone holder to connect the phone and radio.