Feature: 1. Sturdy Materials: Our large button phones use premium ABS materials, heavy duty desktop phones, sturdy and long service life. 2. No Battery Required: This large button phone is powered by the phone line. We do not need to install batteries; it is both energy‑saving and environmentally friendly. 3. Easy to Install: This phone only needs to be inserted into the coil wire and telephone line; plug and play, easy to use. 4. Prestored Number: This big button phone can pre store home number, SOS number and meal order number. It is easy for the elderly to make calls. 5. Humanized Design: You can replace 9 pictures of your family and friends on the keyboard. It helps the elderly to quickly find the numbers. 6. SOS One Touch Speed Dial: Red button design, SOS button is easy to find to make emergency calls. Specification: Item Type: Landline Model: LD-858HF Material: ABS Color: White Function: 1. FSK/DTMF dual system, support audio/pulse. 2. Mute, redial and hands free speaker functions. 3. Ringer volume off/high/low switch 4. Earpiece volume high/low switch 5.9 speed dial buttons Scope of Application: used at home, suitable for the elderly with impaired vision and hearing. Package List: 1 x Telephone Landline1 x Telephone Receiver1 x Handset Cord1 x Telephone Line1 x Standard Telephone Line 1 x Manual Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. 1. The product uses the telephone line power supply to talk, when purchasing, please make sure that there is a matching telephone line at home with the telephone line, can be used normally with the telephone line socket.2. The top of the product has a button to adjust the volume of the handset and speaker volume customers can adjust the volume according to their own needs (ringing the maximum volume of about 110DB).