Feature 1 CLEAR SOUND QUALITY: The wired landline phone adopts high standard technology, exquisite workmanship, clear when talking, the perfect combination of economy and high quality. Supports speed dial, alarm clock, caller ID and hands free. 2 LCD DISPLAY: Corded telephone with caller ID. LCD backlight display, clearer calls at night, 5 level high adjustable. Combining calls is also easier than ever for people with poor vision. 3 DIRECT MEMORY BUTTONS: The home phone includes 6 easy to program direct memory buttons. This allows older relatives or friends to call their closest ones with the click of a button. 4 NO BATTERIES NEEDED: Wired landline phones do not require batteries, eco friendly and energy saving, it is convenient and reliable to connect the phone to your phone jack via the phone cord included in the package. 5 HIGH QUALITY MATERIAL: The hotel extension phone is made of high quality ABS material, which is stable, durable and easy to use. You can use it with confidence. This is a practical landline phone.Item Type: Wired PhoneMaterial: ABSColour: BlackFeatures:1. DTMF FSK dual system caller ID (automatic identification)2. Caller ID and call time record 50 groups (8 digits) or 32 groups (16 digits)3. Outgoing number 14 groups (8 digits) or 8 groups (16 digits) and call time record4. Real time date and week display, LCD brightness adjustable in 5 levels5.1 to 99 hours do not disturb6.16 common ringtones to choose from, the volume of the ringtone can be adjusted in four levels (60 to 83 decibels)7. The software sets the ringer volume, no need to switch8. Software set electronic anti theft; optional soft set P T, no switch needed9. FLASH time 90 95 100 120 180 300 600 1000ms software can choose 10.3 groups of alarm function settings, each group of alarm sounds is different11.6 groups of single key memory quick dialing keys12 Built in music HOLD function, and the machine is automatically lifted13. When you forget to take up the line or hangup badly, it will automatically take up the line (when the line has no clutter interference).15. Local code 8 bits setting, automatic call filter16. The R key function can cooperate with the switch to do the transfer function. Package List1 x Host1 x Earpiece2 x Straight Line (Thick for UK, Thin for Other Areas)1 x Coiled Lines1 x ManualNoteYou need to subscribe to the Caller ID service with your local telecommunications company