Please see the product page at
https://www.sharkrf.com/products/openspot4/
The openSPOT4 Pro extends the feature set of the openSPOT4 with onboard transcoding hardware:
- The openSPOT4 Pro has the best voice quality in cross mode operation
- Supports D-STAR® cross modes: use your D-STAR® transceiver to access DMR, C4FM, NXDN® networks, or your DMR, C4FM, NXDN® transceiver to access D-STAR® networks
- Supports call audio playback on the web interface
- Supports 10 configuration profiles