Specifications:

• Frequency: 850, 900, 1800, 1900 (please do not plug the CDMA SIM card for the device, it will not work with the CDMA card);
• Built-in microphone;
• 24 hours continuous usage (if plug to power);
• All GSM SIM card compatible;
• Microphone range: 10~12 meters (diameter);
• Receive sensitivity: -+ 10k;
• Working temp: -40~50 degrees C;
• Stand-by time: up to 36 hours;
• Transmits audio via GSM cell phone network up to 40 minutes per charge;
• Dimension: 5.2 х 3.7 х 1.4 cm;
• Do not insert the SIM into the slot in the wrong direction;
• Charge the SIM card amount, place the SIM card into the slot with the contact points facing up;
• Led light indication will be activated after the SIM card is correctly inserted;
• Please do not use it to engage any illegal activity;
• GSM Bug will complete initialization and maintain in stand-by status, and when the light will be off it is ready to go.