Now is where the learning curve begins as you learn how to set up a hobby grade quadcopter.
The steps are as follows:
1. Bind your reciever to your transmitter. Check youtube for binding spektrum, sorry I'm not familiar with that protocol.
2. Install the betaflight interface on your computer. Make sure your drivers are correct for your quad to connect to betaflight.
3. Connect your quad to betaflight via USB port. On the setup page you'll probably have to tell it which reciever protocol you're using.
4. Set up your auxiliary switches in your t.x. On the modes page in betaflight you'll have to set an "arm" switch, and you'll have to set your "modes" switch, (angle mode, horizon mode, acro mode.)
5. Go to reciever tab in betaflight, make sure your quad is receiving the signals from your t.x. correctly.
That's about it, in a nutshell. As for your orange spectrum t.x. I'm not familiar with that protocol but remember, someone has probably posted a video about it on you tube and the good people of this forum are always happy to help.
Good luck, happy flying!!