This spying and bugging listening device allows you to listen in on conversations in a house only when someone speaks. In standby mode, it never really draws power from the battery.
A voice-activated listening device, or as the professionals call it "VOX transmitter", consisting two devices: a powerful transmitter and a voice-activated switch.
Usually, a room bugging transmitter is active as soon as is connected to a battery and continues to transmit up the level when the battery is discharged.
Because a powerful transmitter draws a high current from the battery, the battery's lifetime is limited. This is a waste of power and money since this transmitter works even when nobody is in the house or even when people sleep. When there are no sounds in its vicinity, the voice-activated switch disconnects the transmitter, therefore it is extending the lifetime of the connected battery. Furthermore, because VOX transmitters are more difficult to detect, they are safer than other listening devices. This is the original professional VOX (Voice Activated Transmitter) bug spy transmitter, it is flat and easier to conceal, featuring an external golden microphone. During a discussion in a closed space, the VOX starts broadcasting the conversation, clearly and strongly, on the UHF band. When it stops hearing voices, it simply stops transmitting. This Miniature UHF transmitter is engineered for use in a room or other enclosed space. Discussions will be relayed to a distant receiver via the voice-activated transmitter. It will pick up a whisper 10 meters away from the transmitter's microphone, loud and clear, using our Automatic Gain Control system. Excellent audio quality. Features:
The device's dimensions are very compact. Easier to conceal.
Our equipment weight is less than 60% of other equipment.
The matching receiver easily fits in a shirt pocket, so you won't have to hold it in your hands. (not included)
The antenna is thinner - less observed.
Less current is drawn from the battery, so it lasts a considerably prolonged time.
Our transmitters are more powerful than any others.
High-quality precise PCB.
High-quality golden cover of contact plates and microphone.
Active and passive elements from leading worldwide brands.
Miniature size.
The Voice activation system starts transmission only on voice signal detection to maximize battery lifetime up to 500 hours.
Shock-resistant indestructible design.
Extremely sensitive built-in external microphone.
Automatic microphone gain control.
Crystal frequency control stabilized.
Specifications
Working Voltage: 9V Lithium (Ultralife) or 9V Alkaline battery (NOT included)
Dimensions: 2cm x 4cm x 0.4cm.
Stability:The transmitter has 3 x RF stages buffered output for stability.
Frequency:True NFM (Narrow Band FM - Frequency range approximately 433.x (Quartz Crystal Stabilized).
Distance: Long transmitting range. Penetrates through walls and ceilings.
Safety:Our unique transmitters are using a patent material for encapsulating, for safety.
Power: Up to 25mW RF output.
Audio:External golden microphone. High-level difference between noise and transmitted sounds. Its tiny condenser microphone is so sensitive covering up to 10 meters (120 sq. yard) around, crystal clear. You won't miss any whisper. The voice activation system starts transmission only on voice signal detection to maximize battery lifetime up to 240 hours.
Antenna:flexible wire 18cm full extended.
Adjustments:No adjustments are required.
The unit comes fully assembled and ready for use, as shown in the picture. Just insert a 9V Lithium battery and it will begin to transmit. It will work up to 500h using 1 Alkaline battery (depending on brand and freshness, as well as on the time of speaking).
The package includes: 1 X Voice Activated Transmitter VOX VER 9.
*The calculation on VOX mode for up to 20 days is with a 9V alkaline battery and assuming 2-3 hours of conversations per day (the total of all the activity of the day).