... wave resonator);Optional for encoding IC; Chip of fix code type:AX53263 PT2262 PT2260 EV1527 FP527 PT2242 HT600 HT680 ... 480Mhz Frequency deviate ±150KHz Chip A.Common code: Learning code (1527, 2240, HT6P20B, HT6P20D etc.) Fixed code (2260, 2262, 2264, 2272 etc ... .) Hopping code (HCS301, HCS300, HCS200 etc.) B.copy code: special chip, can copy other remote control ,use by oneself Voltage 6V ...