2.4GHz DIGITAL SPREAD SPECTRUM! The Uniden® 2.4 GHz cordless phones are designed and engineered to exacting standards for reliability, long life, and outstanding performance. Digital Spread Spectrum Technology utilizes a "wider frequency band" vs. a "single narrow band" used in standard digital transmissions. The 2.4 GHz frequency range was recently released to commercial communications. It provides secure conversation with the clarity of digital sound, extended range, and reduced interference. The Uniden TRU3485 has many features which include: 50-station name/number caller ID memory and dialer, Integrated digital recording system, 20-number memory dialing, Speakerphone, 15 minutes of digital record time, Dual keypad so you can dial from the base or the handset, Backlit keypad, Last three number redial, Headset compatible, Model No: TRU3485(R) Weight: 3.75 Lbs.