The output power is only 15 mW, but the distance it may achieve is astonishing! Using as power-supply only 3V, it has two options for connecting batteries: internal, a button-type battery, as CR2430 or CR2450, or external 2 X AAA slim batteries. This way, it may be concealed in many various places. The voice activation add-on makes this spying bug one of the most reliable and useful spying hidden microphone, because it transmits only when there are voices or noises around it, in the room. It doesn't waste the battery power during sleeping or if no-one is at home.
This way, the battery is preserved for long time. The listening device bug is transmitting in the UHF band, within 400 to 480 MHz, and the frequency is stabilized by a microprocessor, which in turn - it is using a military grade quartz crystal. This way you can get almost endless frequencies, and none of them will interfere with another. Working Voltage:3V ONE X Lithium (CR2450 to CR2477) OR 2 X AAA batteries.
The battery-holder for external batteries uses an ON-OFF switch. Internal microphone, just 4mm diameter. The Diameter is only 2.4 cm (Less than 1.0)! Transmitter's frequency range: NFM (UHF) 400-480 MHz CRYSTAL STABILIZED.
Long transmitting range: it covers an area up to 1600 m² line of sight. Using a microprocessor SMD, for more stability and range (MIL SPECS 0.0000001% accuracy). Programmable frequencies (In our lab).
Narrow Band FM - for power and stability. Using a special material for encapsulating, for safety, security and anti - humidity!! The device is coated with special Anti-static material. The transmissions penetrate through walls and ceilings.Professional gold plated board, for additional stability. 1 Crystal controlled PLL PROGRAMMABLE VOX-15 SPY BUG Transmitter. Additional battery holder for 2 X 1.5V AAA batteries. The item "Miniature Listening Device for spying 3V activated by voice" is in sale since Thursday, May 03, 2018.
This item is in the category "Consumer Electronics\Gadgets & Other Electronics\Surveillance Gadgets". The seller is "petrutech" and is located in Kiriat Bialik . This item can be shipped worldwide.