Product Features: 1. High quality ABS material, durable for long service life. 2. This big button phone is powered by telephone line. We dont need to install batteries; it is energy saving and environmental protection. 3. Easy to install: just insert the coil cord and line cord; plug and play. Functions: 1. Automatic checking of FSK/DTMF dual system. 2. Easy to install: Can be placed on the desktop. 3. 10 two buttons dial memories on digit 0-9 ( two touch memory ) 4.1 One button dial for SOS Emergency Call ( one touch memory ) 5. Flash, Redial/Mute/ Pause function 6. Ringer High/Low/Off adjustable 7. Handset Volume high/medium/low adjustable Packing List: 1 * Big button Memory Telephone for old people 1 * Telephone Cable 1 * Handle 1 * Handle Cable 1 * user manualOur products are made with the highest quality materials and are designed to provide you with the best possible user experience. We strive to ship out all orders within three days of purchase, and the estimated delivery time is 8-15 days.When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specificationsWe want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don't hesitate to contact us. We are here to help and will do our best to assist you.Thank you for choosing our product. We hope you enjoy it