Looking for SIM card spy gear remote listening device? PT Crystal has launched the amazing SIM Card Spy Ear into the market. As what you see in the photo, it’ s a black box that able to perform spy listening via SIM card.

What you need to do is just stick your SIM card into the device and attach it to underneath an unsuspecting desk, then call the cellular number of your SIM card. Once you’ ve connected, you can sit around and listening to the targeted conversation. Seems perfect for keeping an ear of anyplace you want.