Features :

• Size:60*30*10mm(L*W*H)
• Weight:19g
• Sound Monitor Spy bug/ Wire tapper/GSM sound monitor/Callback electronic alarm Sound activated dial back function/Call back function,sound above 65dB.
• Built in rechargeable battery, can be used when it get charged by USB port. Card compatible: GSM/SIM.
• Support GSM 850/900/1800/1900MHZ, worldwide use.
• Disguised USB flash drive shape, no memory inside No limit to distance and space.

Description :

This product is suitable for home/office/warehouse surveillance and security. It has wireless voice transmission. It is a universal product, NOT limited by distance or space. Its quad band support, GSM 850/900/1800/1900MHZ, can be worldwide, just like a U Disk.