inputs.text: high quality unit rugged - really surprised good unit receives transmits air ground ultralight use unit sigtronics headset no rehemote talk switch yet works perfectly manual states unit cannot transmit without rehemote push talk switch found otherwise not sure depends headset mine transmits well using headset push talk switch side radio several pilots report signal good air not used vox feature yet worried loudness plane overwhelm vox feature far connectors concerned read reviews say headset adapter \\joke\\ need screw adapter radio like lot ensures headset adapter not come radio either partially completely important since rely radio exclusively ultralight not want cords becoming unattached radio bottom line love screwin headset adapter plug secure times goes antenna screwin type adapter wishing add external antenna screwin antenna absolutely not fall unit icom a24 rubber duckie antenna not adequate needs antenna fell flight not good thing glad not go prop vertex 220 great little transceiver light sport aircraft rely simple unit air keep others informed pattern receive weather reports not use mehemory feature use \\last frequency\\ function flip flop channels easy highly intuitive long not jump programming features no knowledge no desire utilize highly recommended