Remote control SPIDER - USA FREQUENY 915Mhz - 4-channel - CONNECTION WITH SUPPORTING MODERATE (a signal every 100ms) ONE-WAY TO THE RECEIVER - Panel with 4 buttons UP - DOWN - SX - DX + 2 buttons START - STOP + Warning lights Charge and Transmission. The receiver unit automatically goes into BLOCK (EMERGENCY) if the signal of the button (transmitter) is not present for more than 600 ms. Spider connector with 7 poles.