Socket built-in GSM wireless monitor wireless module, Shenzhouxing China Mobile SIM card support, automatic charging, 72 hours standby after power failure. Need to use a SIM card inserted, any time you make the phone socket card number, auto-answer after 1 second, you can hear the sound around the socket. Can be used for domestic security, storage security.
    The new wireless monitor socket with automatic call back function. When someone's walking around the socket sounds or other signs of trouble. It will automatically change your phone call. You can always monitor the storage, movement within the specified range.