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This sub-category defines GSM audio listening into battery powered devices. One of the most sought applications for using GSM is portability, and the various types of GSM products are powered from an internal fully rechargeable battery which does not restrict deployment to one particular area. An example would be for use inside a vehicle whilst still maintaining a good GSM signal.
Due to GSM battery powered products not being integrated inside products, these types of devices would generally be small and "box" shaped with all the same great technology built inside as their mains powered counter-parts.
If you need to monitor a room discreetly, the best way to do it is with a compact, battery-powered listening device. These essential surveillance products can be used in all kinds of environments, from offices and workplaces to around the home.
Why choose a battery-powered device?
One of the biggest advantages that battery-powered listening devices offer compared to bugs that use mains power is portability. Provided the battery is charged, you can use them anywhere at any time.
You don’t need access to a plug socket in order to start listening instantly. You can keep the bug in your pocket, car or in a desk drawer left slightly ajar, or you can subtly plant it in a suitable place. This flexibility means that listening in fantastic audio quality is an option no matter what the environment.
How these listening bugs work
Similar to mains-powered products, these devices use digital mobile GSM networks. Using this network, you can dial into the device’s SIM card in order to listen in live. This means you can access the bug and listen from anywhere in the world, because all you’ll need is a mobile signal and a phone. Many devices also offer recording, so you can gather evidence and listen back at a later date.
There are lots of situations in which a battery-powered listening device can be extremely useful. Popular uses include:
Choosing a battery-powered listening device over a mains-power one can be a smart choice if you want flexibility, portability and discretion. Most devices use GSM mobile networks to allow you to dial in and listen live from anywhere in the world.
Features to look out for
The features of your chosen surveillance device all depend on what you’ll be using it for. These bugs have a wide range of different uses, and some are more sophisticated than others. Buyers should pay close attention to features including:
One of the most important things to check before buying a battery-powered listening device is how long it’s battery will last. These devices have come a long way in recent years and many can now offer long life listening with anywhere from 7 days to six weeks standby time. With the right device and a degree of planning, you can listen in for as long as you need to.