Safety and Caution:
1.This product is suitable for home,office,warehouse,security safe to use.
2.Wireless vocie transmission,the worls's univeral,
not limited to distance,limited space.
3.Please lawful use,such as the use of this product illegal
operations,the company will not assume any liability.

Functional use:

1.monitor function:Install SIM GSM card to the machine,and then call this SIM card number to monitor.

2. Open call back, send short text message 0000#phone number# to SIM number.

3. Cancel call back, send short text message 0000##