Might find some old intercom4 at around 200 even less, a good decent system that serves you, your phone, music, gps, and the rider next to you, a third person with a similar intercom system would be able only to hear you. The new 5 edition does all the previus system does but this time up to six riders can communicate. The system is good for eye to eye (line of sight) up to 3 kms a huge distance for such a system. 5 costs around 300.
Midland and any walkie talkie system would involve a lot of cables and many efforts to tune among them each time. They do offer comes at longer distances again line of sight comms being vhf system.
In market currently best is the sena system but could go with all its gadjets to 500.