20m-100m operating distance 1604E 6F22 9V DC operating voltage for transmitter, 1.5V DC UM-3AA operating voltage for receiver Frequence :FM 80- 12500 Hz Transmitter operates on 1-9V battery Dimension: 95 x 64 x 28 mm (transmitter) 104.5 x 40 x 14.5 mm (receiver)Note:Not included …