Wireless Transmitter 1) battery button cell 6V 2) frequency 315 or 433. ... ,433.92MHz)Battery ModelButton CellNet Weight30g/pcGross Weight34g/pcCarton Dimension53.5*22.5*35cmVoltage6VEncoder ModelHCS301,PT2240,EV1527,HT12E,HT6P20B,HT6P20D,HCS300,HCS306 ...