At a Glance:
Hidden Audio Spy Listening Device
Microphone Range: 3-5 meter radius
To use the features on this product you will require a compatible GSM sim card once you have tested ok put some credit on the sim to ensure that the network keeps it active.
It's always best to stick with a network that you know has a decent reception in the area that the product is being used, we normally recommend Vodafone, Virgin or EE in the UK as these have good network coverage. Device works with most GSM networks across the world.O2 & the 3 Network sim cards will NOT work with listening devices as they are mainly 3g sim cards.
You can add a compatible GSM sim card to your purchase by selecting from here Sim Cards and Add to Cart.