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 EE, Vodafone, Virgin or Lebara 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 memory card to your purchase by selecting from here Memory Cards and Add to Cart.
Warning: This product should not be used for any illegal purposes; you may be subject to prosecution under applicable laws.
It is illegal to make recordings (audio/visual) of any person(s) without their prior knowledge and/or consent.