GSM Air Freshener Bug
This normal looking air freshener has a hidden built-in GSM bug that can be set to a sound-activated mode. You can use SMS commands to adjust the settings of the unit, including setting up sound-activation, and the option for the device to dial you when it detects noise, so you never miss a moment. Or you can dial in at any time to listen instantly. This device is powered by a 5,200 mAh Li-Ion battery and the battery life is up to 4 weeks.
It’s perfect for discrete surveillance due to its inconspicuous appearance, and settings can be adjusted so that you get the best use out of the device. There are lots of situations where the GSM Air Freshener Bug would be perfect.