900 MHz Frequency - State-of-the-art cordless telephone technology operating in the 902-928 MHz frequency range. Offers more channels, clearer reception, longer range and less interference. 32 Channel Auto Scan - Automatically selects a channel most likely to be clear, Crystal clear sound with compandor technology - extends the effective range of the cordless telephone while reducing static and interference, new reversible charge design - handset can be charged face-up or face-down in the desk mount position, mute - one-touch button allows you to engage in a side conversation without the calling party hearing, 10 number memory - program up to ten frequently called numbers, page/find -one-way page from base to handset. Helps locate the handset when it's away from the base, handset volume control - allows adjustment of listening volume level, automatic digital security system - prevents false rings from other cordless telephones, one-touch redial of last number dialed, ringer on/off switch - turns ringer on or off, charge indicator light - LED indicates the handset batteries are charging, battery low light - LED indicates when handset should be returned to base to recharge the batteries, out-of-range warning - tone alerts user when communication range is excessive, flash - one-touch button for activation of custom calling services, such as call waiting, hearing aid compatible, desk or wall mountable, FCC registered, UL listed, one-year limited warranty.