AT&T CL80100 CL80100 DECT 6.0 Cordless Accessory Handset for CL84100 ATTCL80100 ATT CL80100, Quickly and easily add phone to a new location in your home or office. Four, pre-set equalizer programs let you choose the sound quality that best fits your hearing. Tri-lingual menus support easy interaction and user convenience. Easy-to-read display clearly shows phonebook and Caller ID information. Compatible with most hearing aids. Answering System: Digital; Lines: 1; Telephone Type: Cordless; Caller ID/Type:andset., UPC 650530020506