Feature: 1. ONE BUTTON SOS DIALING: The elderly landline phone not only has fixed SOS speed dial keys, but also comes with a one button SOS dialing remote control, which can be worn by the elderly at home on their own keychain or around their necks, so that they can dial the number at the first time in case of any emergencies 2. PICTURE BUTTONS: 9 picture buttons can store one button speed dialing phone numbers. The photos on it can be replaced with your family or friends' photos, convenient for the elderly or dementia patients. We suggest you'd better not unplug the phone line easily or the memorized numbers will be lost. 3. ADJUSTABLE VOLUME: Different volume can be used for different occasions. The volume of the incoming ringer can be adjusted from low to high, and the ringer can also be turned off. The sound of the handle can be adjusted to low, medium and high, making chatting more free. 4. HD HANDSFREE FUNCTION: Handsfree calling with HD sound quality (volume up to 75+ dB) allows you to maintain a premium call while having fun. You don't need to hold the phone to your ear to hear everything the other party is saying, making it easier to use. 5. PREMIUM MATERIAL: Our landline phone is made of premium ABS material for long life. The large button phone requires no batteries, plug and play. It is perfect for long term use in schools, homes, and offices. Specification: Item Type: Big Button Phone Material: ABS Color: White Remote Control Battery: Built in 2 x 75mAh CR2016 Button Cell Batteries (included) Function: 1. 8 groups of single key affection keys, picture one touch dialing 2. 3 groups of SOS key affection button, picture one touch dialing (three groups of numbers can be manually cycled out) 3. Remote control SOS dialing function (three groups of numbers can be manually cycled out) 4. 10 sets of two key affection keys 5. One touch SOS dialing (user defined) 6. Indicator light function 7. Flash off function (FLASH) 8. Redial function: (REDIAL) 9. Handle handset volume three adjustable (large, medium, small three) (HI, MED, LO) 10. Ringer volume large, small, off three adjustable (large, small, off three) (HI, LO, OFF) Scope of application: for the family, for the elderly with impaired vision and hearing. Package List: 1 x Landline Telephone1 x Handset1 x Handset Cord1 x US Phone Cord1 x UK Phone Cord1 x Remote Control1 x Lanyard1 x Instruction Manual Note: It is normal for the number keys not to emit a signal sound when storing a phone number. This is the way the phone number is stored, not the behavior of the number keys not working.