Morjava KT-01s Kids GPS Watch Smart Watch Tracker Bluetooth Child Smartwatch Two Way Conversation Intercom 0.66 inches OLED SMS Phone Calls GPS Bluetooth LBS(Green) 1.GSM/GPS/BT Antenna.The KT01S will send location to the server and the bound smart phone can get the location information from that server 2.Waterproof Grade is IP65/The satellite sends data to KT01S and KT01S will work out the current location beyond the data.SOS Features If the SOS operation has been interupted, by whatever means (one of the three telephones makes a phone call to KT01S or children've pressed the On-Off key, the auto poll will be stopped. 3.It is made by hypoallergenic silica gel without toxicity./If the parent gets the SOS SMS, he/she can make a silent call to KT01S, namely to monitor KT01S (mentioned above)You've first set three family numbers, and once you press the SOS key, KT01SS will first send alarm SMS to the three family numbers respectively, and will then automatically poll the three family numbers from Number 1 to Number 3 one by one till one of the three phones answer the call. 4.Track & Locate by GPS/AGPS./Tracking & Locating Features1The satellite, KT01S, smartphone, and server work together.Using KT01SS, child can dial out three telephone numbers and receive calls from 8 telephone numbers, but the priority is that you have setted the numbers in the smart phone in advance. 5.If the wristband is cut or disconnected, parents will get the alarm message soon. ( If this feature is illegal in your country, we can disable it. )Having connected KT01SS with the smart phone, the smart phone can monitor KT01S (by sending a SMS to KT01S and KT01SS will call back). When the line is connected, the parents could get to know the environment around the child.