Battery Bug Listening Device 900/1800MHz

Battery bug listening device 900/1800MHz

This product uses military technology GSM module with voice-activated automatic pull back function, This product compact size, voice clear, long standby time, simple operation, stable performance, without install, remote control etc.,

Usage:
Boot: The SIM card inserted into the card connector, the red indicator light after 30 seconds the product is ready. This state can only answer an incoming call.

SMS Settings:
Standard features:
Send "GDM1" start voice control, when sound around, the product will call your mobile.
Send"GDM2" stop voice control.
Send"GDM3" inquire electric quantity.
Send"SJ**" set voice control call back interval.

Note:
This machine is only inserted the SIM can be boot.
Please pull the switch "on" position. When charge.
The new machines need to be recharged before use 3-4 hours in order to achieve the best results, please use our distribute charger avoid damage to the host.

Standby time: 70-150hours of standby with the voice-activated, without voice-activated standby 120-240hours, depending on the local network signal strength may be.

If the product can't auto-answer:
To confirm whether the GSM card, this machine using a GSM network.
View cell phone signal is strong enough to install location.
To ensure the security and confidentiality, please sure to use a new card.
Net work type
GSM 900MHz/DCS1800MHz

Accessories:
Host *1, charge, USB *1, charging cable *1.