You only need to buy a new SIM card, place it in this device. Once you call this number, this device will auto answer, and it is working like a phone with auto answer without speaker. If put one together with old or desalted person at home, their safety can be monitored consistently.

 And you can call in anytime anywhere or you can put in the car or other place and it will work 1 to 2 days it will need to charge again.

Key Features:

·         Super-sensitive audio surveillance.

·         Frequency: 900, 1800, 1900

·         Embed four condense microphone

·         24 hour non-stop power supply

·         All GSM SIM card compatible

·         Microphone range (Meter): 5~15(Radius), 4 levels

·         Receive sensitivity: -\+10K

·         Working temp: -40~50'C

·         Responding frequency: 1.2K~800Khz

·         Stand-by time: 7~15 days

·         Working time: 2-4 hours

·         Size: 60mm*40mm*15mm

Technical Specification:

Charging up the device, Red and Green LED lights ON. When the device is fully charged up, only Red LED lights ON

Place the SIM card into the slot with the contact points facing down (according to the pictures indication)

The flash of red light indicates the SIM card is correctly inserted. SIM will completed initialization and maintain in stand-by status

Dial the SIM card number, you could hear the sound around the SIM card

Please do not use it to engage any illegal activity

Notice:

Do not insert the SIM into the slot in the wrong direction.

Package  Includes:

1 x GSM SIM Audio Surveillance Device,

1 x Charger