Description: Product List: 1 Emergency button, size is 50mmx50mmx15mm.Material: Emergency Button is made of quality PP material, which is strong, wear resistant, and can be used for a long time.Function: Emergency Button can make emergency calls when the elderly need help.Applicable scenarios: Alerting Button is suitable for the elderly, disabled people, children, and women. It can play a role when the elderly fall and children need help.Easy to use: Call Button is simple in design, easy to use and carry, convenient, and fast. No wiring is required. Specification: Material:PPWorking Voltages: 3VQuiescent Current: 1uADynamic Current: 20mAOscillator Resistance: 280-380K Size Chart: 5cmx5cmx1.5cm/1.97inchx1.97inchx0.59inch Package Includes: 1Emergency Button Note: Please allow slightly errors 1-2cm differences due to manual measurement.