Our Dual Dock iPhone & DECT 6.0 Cordless Phone lets you make, receive, or transfer phone calls from either your iPhone or a landline. Incoming calls will ring on both your cell phone and the included cordless handset—so there’s no need to scramble to find the “correct” phone to answer. DECT 6.0 technology offers the best digital encryption available, crystal clear sound, and extender range when compared to other technologies High-definition sound processing to ensure that voices sound as clear and strong as an in-room conversation Hybrid Bluetooth technology links your iPhone to the phone system while the built-in cradle keeps your battery fully charged Variable ringtones distinguish between cellular and landline calls High-definition 1.8” color LCD screen offers 11 levels of adjustable contrast Dual mobile phonebook synchronization to DECT landline handset Made for iPhone Certification Dual Bluetooth phone connections Includes a built-in speakerphone, alarm clock, and caller ID capability with 200-name memory Supports up to four additional handsets on a single phone line Compatible with iPhone 3G/3GS/4/4S 120V