Switched to Futaba, have upwards of 15 to 20 spektrum, and orangeRx DSMX and DSM2 receivers. Almost all of the spektrum ones are the AR636A and I have 4 of those. Most all of them are 6 channel, a few 8 channels. The 8 channels have signal telemetry and rx pack voltage telemetry. The AR636A RX'S also have the same telemetry plus the gyro for SAFE technology. Make me some offers. PayPal works. Thanks.