Voice Detecting Auto Callback GSM Spy Audio Bug is compatible with an advanced voice function that enables the device to call back automatically once it get voice information. Such devices are featured with small size, clear voice, long standby time, simple operation, stable performance, and easy installation. And as to the external control and a flashlight dedication make the usage much easier. So that users can have a base station location for tracking, home surveillance, automotive anti-theft tracking, and child custody.

How to use, then? Firstly, open the back cover, insert the SIM card holder automatically boot, boot-up indicator light 5-8 seconds until the indicator light means the rear cover can be stamped out after the dial-up use. While operating this Voice Detecting Auto Callback GSM Spy Audio Bug, please make sure the GSM network signal strength in the place you install the device, never install it in weak signal areas or even no signal, so that the device can work well. And then you should write code before you switch out to the base station location, using SMS GDM (NOTE: GDM necessary to complete capital letters) to increase the number of calls you, (such as GDM123456789). Later, to switch out to the B position, when you do not have voice-activated switch out to the A position, there is no sound at this time regardless of the outside will not automatically back out, can only answer a call.

While using, troubleshooting listed as following:

Light does not shine?
See whether there is battery powe. Charge after use.

Cannot get through phone?
Firstly, you should check SIM card is there any good plug. Boot from the new card. If still do not auto-response, please boot from the new card and confirm whether it is GSM card using the local GSM network. Then, you should check that whether the signal is strong enough.

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