Product Description Motorola 2.4GHz Digital Expansion Handset (B&W): Requires any SD4500 series base, B&W screen, 15 melody ringtones, 50 phonebook memory slots, speakerphone in handset, has downloadable capabilities Amazon.com Expand your SD4500 phone system base with an extra handset in the bedroom, kitchen, den, or any part of your home or office. You get cordless convenience plus a cool phone with advanced features, like caller ID with visual call waiting (with subscription to local service), hands-free intercom, and a 50-name phonebook--all without installing a phone jack. This handset offers 2.4 GHz digital technology and is home networking friendly; it can even be used as a room monitor. Fifteen selectable polyphonic ringtones allow you customizable options, while the long-life battery supplies an expected six hours of talk time. Ten speed-dial presets offer one-touch access to your most frequently needed numbers; the trilingual display offers a choice of English, French or Spanish. Motorola provides a one-year warranty covering parts and service. What's in the BoxHandset, charger, AC adapter, belt clip, instructions, warranty informationNote: This is not a standalone phone. It requires a compatible base system (sold separately) to function.