Notes from the Team-Legit tech department:
This mount will attach the Spektrum 4.3" video monitor, as well as any generic phone or phone-sized screen, to a variety of transmitters. Compatible transmitters include the Taranis X9D and Q X7 radios, as well as the Spektrum DX6, DX8 and DX9. The DXE and DX6E are not compatible due to their irregular neck strap mounts.
Compatible with phones up to 3.17 inches (80.5mm) wide.
Blade TX Smart Phone Holder BLH7911 is compatible with BLH7800A, BLH7910, BLH8000, BLH8080, BLH8160