| Transmitter:SM-TG661 | Receiver:SM-RG661 |
| Transmission frequency:2.4G | Receive frequency:2.4G |
| Modulation:FSK | Operating voltage:4.8V ~ 6V |
| Radio Interface:SMA | Control System:Pulse width control(PPM) |
| Control System:Pulse width control | Receiver IF bandwidth:500KHz |
| Control system:6 Channel | Receive sensitivity:≤-100dBM |
| Power Supply:8 AA Ni-MH/Alkaline batteries | Current :<20mA |
| Current:<250mA | Receive size:24.5X21.0X11.2(mm) |
| Transmitter size:201X192X60(mm) | |
| Finetune Way :Electronic trim | |