This emergency button can alarm and call for help with one button, and push it to the mobile phone through Wireless Fidelity to effectively deal with the emergency situation of the elderly and children. Features: One click Help, prevents accidents, through home Wireless Fidelity push to the mobile phone, can help the elderly in emergency help. Define the scenario working mode, can linkage alarm or linkage call for help. The product can be used alone, Wireless Fidelity can also be linked to achieve remote push, care for the elderly and young at home. Easy to install, SOS button can be installed in most places. The button can be worn by hanging rope, which is more convenient to move and carry. Small and portable, no burden for the elderly and children. Specifications: Material: plastics Battery: 3.6V,120mAh Item size: 55 * 55 * 18mm / 2.2 * 2.2 * 0.7in Item weight: 27g / 0.95ounce Package size: 85 * 65 * 30mm / 3.3 * 2.6 * 1.2in Package weight: 29g / 1.02ounce Note: Not compatible with Alexa and Google Home. Packing List: 1 * Emergency Button 1 * Hanging Rope 1 * Double-sided Paste 1 * Accessory Pin 1 * Instruction Manual