Bug transmitters

Miniature digital spy transmitter with frequency hopping, very small dimensions and operating in the UHF band

GSM spy recorder

Surveillance PC speakers

UHF or GSM spy alarm clock transmitter disguised as an actually-working alarm clock

Wideband receiver and VHF receiver

Disguised UHF spy audio transmitter in credit card size

Encrypted digital UHF bug transmitter kit

VHF bug with long operating time

Miniature UHF bug

Button-battery-powered UHF bug transmitter with crystal-controlled frequency and preamplified microphone

Phone plug bug transmitter

Miniature preamplified UHF bug