Power bank Shape GSM Bug long time working Call-back function
This product is suitable for home/office/warehouse surveillance, security safe to use. Wireless voice transmission, the worlds universal, NOT limited to distance, limited space.It is quadband,support GSM 850/900/1800/1900MHZ,can be used in worldwide, it just like a U Disk and you can hidden it wherever you want.Its allow you to spy anyone in any place. You only need to buy a new GSM SIM card, place it in this device. Once you call this number, this device will auto answer, and it is working like a phone with auto answer without speaker.