4 handsets: 1.6\" Amber backlit screen and illuminated keypad for easy reading and dialing even in low lighting conditions Call blocking function lets you easily block up to 30 telephone numbers Intelligent Eco mode extends battery life for longer talk time when close to the base unit Hands-free speakerphone and dedicated Intercom button for extra convenience Night mode allows you to select a period of time during which the handset will not ring; Frequency Range: 1.92 GHz - 1.93 GHz. Number of Channels 60 Channels › See more product details