Precise GPS Positioning: GPS + LBS + AGPS + WiFi multiple positioning, open the mobile app, you can view the watch's position anytime, anywhere, and find the old man in no time. Ideal gift: The SOS bracelet is the perfect gift for the elderly and children. It can be used to call for help and find their location quickly if they are lost or in danger. Independent call: By positioning the watch, you can set family numbers, mutual talk, the watch supports "micro sim" one. 'app..Connect this product to unlock other functions. Tracker: With this smart bracelet, you can track your full-time activities. The pedometer bracelet can display the steps taken and the distance traveled. history of the elderly at any time. Safe electronic writings: the security range of the counter can be adjusted..When the weather is out of this range, the mobile application will automatically notify you to warn various accidents in advance..The phone can also set an alarm clock to remind the elderly to take medicine, rest, etc.