myFirst Fone R1s 

• Supports 4G LTE communication, so you can take real time video and voice calls with your smartphone that comes with parents or other parents (requires a SIM for communication and a dedicated app)

• Real-time GPS tracking function records the child's travel history for each time set

• SOS function for sending alerts and locations to administrator's app

• Features to set multiple safe zones on the maps of the administrator app, such as home, school, etc

• MP3 player function that can play music and audio up to approximately 2.44 GB