About this item

• There will be no sound, light, vibration, ringing during use; Super mini size, easy to carry around.
• Just give a call to the SIM card installed in the device, and you will can hear nearby voice within 10 meters in a few seconds;
• Automatically give a call to use when it detects that nearby voice is louder than 45dB;
• GSM Quad Band ( 850/ 900/ 1800/ 1900Mhz ), work perfectly around the worldwide; Built- in 4pcs premium metal mic ensures the good sound quality;
• Supports pre-setting number, telephone number and mobile number both are ok;GSM Listening Device N9 Pickup Car Anti-Theft Tracker Portable Voice Surveillance System (SIM card not included)