Wireless Elderly Call Button System

This wireless emergency call system includes a wearable wristband-style button and a plug-in or USB-powered receiver. The call button measures approximately 5.5 cm in diameter and 2 cm thick, weighs 42 g, and is made of soft-touch silicone and ABS plastic. The receiver (plug-in version) is 10 cm × 6 cm × 4 cm and weighs 180 g; the USB version is 7 cm × 5 cm × 2.5 cm and weighs 95 g. It operates on battery power (button) and mains/USB power (receiver), with an open-area wireless range exceeding 500 feet. The system supports 60 ringtones for the plug-in receiver and 4 for the USB receiver, with volume adjustable across 5 levels (0–110 dB). The USB receiver includes a magnetic sticker for flexible placement on fridge, bedroom wall, kitchen cabinet or bathroom tile. The system enables instant two-way alerting: pressing the button triggers an audible and visual alert at the receiver, notifying caregivers immediately. Both components are portable — the button can be worn as a wristband or pendant, or mounted bedside or near the toilet; the receiver moves easily with the caregiver across rooms or outdoors. Designed specifically for home-based elderly care, it supports independent living while ensuring rapid response during falls, medical episodes or sudden discomfort — especially valuable for those with mobility limits, dementia risk, or chronic conditions requiring timely assistance.