The receiver is high - miniaturization silicon module .

Demodulation by means of single IF conversion obtained making use of crystal .

Working frequency : 433 MHz . RF sensitivity : - 100 dbm . LF bandwidth : 20 Hz to 20 kHz .

The receiver starts to operate immediately it senses transmission , and stops at no transmission .

Very low current drain at stand by mode , allowing the receiver to be on hold for up to one week time on D - size alkaline batteries . (not included ) .

Operation (recording ) period for up to 24 hours on alkaline batteries .

Doubling the record time by a push of a switch . possibility to eavesdrop with no recording .

This quality radio / tape receiver conceal in it a specific receiver for the transmitters presented in this site . in addition to a common features of an ordinary (AM - FM ) radio / tape .