1. “This is me” - provides a ‘snapshot’ of the background and daily habits of the demented elders in order to enhance the understanding of the caregivers including medical or nursing staff towards the elders; 2. The “GPS Tracking” - enables family members to stay connected with the demented elders and know their whereabouts, thus supporting the needs of caregivers and elders with memory problems and cognitive impairment. Enables caregivers to set the living circle range. When the elderly leave the range, the caregiver will be notified; 3. Medication Reminder – provides a regular and clear reminder of medication; 4. Tracing Function – distributes the information of missing elders; 5. Cognitive Training – provides 3 different type of cognitive training games to enhance self-esteem among the elderly and delay ability decline; 6. Practical Life Tips - provides practical tips to set up a safe and comfortable environment for the demented elders, and strengthen the orientation of the home environment.