GSM listening device for ambient sound and conversations, remotely monitored via mobile phone with low-frequency band

Description

Only 5 units available at this price... Ultra-compact listening device—can be placed anywhere; it is an N9 replica (as mentioned in the title). Listen to conversations around the device, even from distances of 1 km or 1000 km. When the listening device detects sound above 50–60 dB, it automatically calls you. Hand-delivery available in Castelo da Maia, or cash-on-delivery shipping via CTT for €7.95. Product price and shipping costs are non-negotiable. How this listening device works: 1-) You must acquire a SIM card from any mobile operator, with any tariff plan you prefer. 2-) Disable the SIM card’s PIN code: simply insert the SIM card into a mobile phone, go to SETTINGS → SECURITY, and select an option similar to "Disable PIN" or "Deactivate security code", etc. 3-) If the SIM card is new, make an outgoing call with it so that the call is answered on the other end; if successful, the SIM card becomes activated. 4-) Now insert the SIM card into the listening device—when a red LED lights up and then turns off, wait 5–10 seconds, and then dial the phone number associated with the SIM card installed in the device. 5-) This listening device features an automatic calling function: upon detecting sound above 50–60 dB, it dials the mobile number used previously to call the device (fixed function).