Powered by 4 standard alkaline batteries, thus the use is completely possible without cabling. The operating life of the batteries is about 3 years. The siren is switchable between siren with flashlight or only flashlight. The alarm duration can be set at the transmitter between 10 seconds and 6 minutes. If desired, the siren can be switched off on the radio transmitter.
Transmitter range: approx. 328 feet (100 meters)
Volume: approx. 105 dB / A
Dimensions: 7 ½ x5 ½ x 4-inch (19 x 14 x 10 cm) (H x W x D)
1 x wireless siren in plastic housing
1 x Receiver
1 x batteries (R20 and 9 V block)
1 x user manual