Main unit uses a 6v adaptor (not included) or 4 x AA batteries.
Pendant transmitters use one 23A 12v battery each (included).
Operating range 60m.
Receiver unit length: 120mm (4.75'').
Receiver unit width: 85mm (3.25'').
Receiver unit depth: 20mm (0.75'').
Pendant transmitter length: 60mm (2.25'').
Pendant transmitter width: 35mm (1.25'').
Pendant transmitter depth: 10mm (0.25'').
