Welcome to our store! 1 Large button and enhanced volume design, suitable for elderly people with impaired vision or hearing problems, LED call indicator. 2 Adjustable volume of earphones, ringtones, speakers (ringtones can be turned off), with flashing, pause, mute functions, hearing aid control function. 3.10 double-click speed dial storage capacity, quickly and easily call emergency calls for help, last number redial function, fixed-line fixed-line. 4. Power outage work, emergency use of power outage at home, pulse or tone can be switched, and the ringtone height is adjustable. 5 Can be connected to existing standard telephone jacks without batteries, durable structure and rigid design extend service life. Color: White Product packaging size: 215 x 75 x 210mm Note: You need to bring your own batteries. Please allow slight errors due to manual measurement and different displays. (Customer satisfaction)-is our top priority. If you find any problems after receiving the product, such as damaged goods or incorrect quantity, please immediately. We will try our best to provide you with satisfactory after-sales service. Thank you for your visit, I hope it can be helpful to you and wish you a happy life. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.