Feature:1. DTMF/FSK compatible desktop landline telephone with 16 digit LCD display for home, hotel, office, call center, etc.2. Supports mute, flash, redial, pause, hands free, hold, back dial, anti-steal dialing functions.3. 50 groups 8 digits incoming call memory and 14 groups 8 digits outgoing call memory; 16 ring melodies for selection, and the ringing volume(4 levels) and speaker volume(2 levels) can be adjusted.4. In on hook state, you can use the calculator function to do some simple calculation.5. With considerate DND(Do Not Disturb) function, in DND mode, incoming ring will come only for VIP specified numbers, there will be NO ring for other ordinary numbers.Specification:Features:DTMF/FSK compatible desktop landline telephone with 16 digit LCD display for home, hotel, office, call center, etc.Supports mute, flash, redial, pause, hands free, hold, back dial, anti-steal dialing functions.50 groups 8 digits incoming call memory and 14 groups 8 digits outgoing call memory.16 ring melodies for selection, and the ringing volume(4 levels) and speaker volume(2 levels) can be adjusted.In on hook state, you can use the calculator function to do some simple calculation.With considerate DND(Do Not Disturb) function, in DND mode, incoming ring will come only for VIP specified numbers, there will be NO ring for other ordinary numbers.Specifications:Color: Black/ Off-white(optional)Material: ABSItem Size: 15 * 19 * 6.5cm / 5.9 * 7.5 * 2.6inItem Weight: 390g / 13.8ozPackage Size: 29.5 * 21.5 * 6.5cm / 11.6 * 8.5 * 2.6inPackage Weight: 480g / 16.9ozPackage List:1 * Telephone Transmitter1 * Telephone Receiver1 * Connection Cable1 * Telephone Line1 * Users' Manual(English)Package List:1 * Telephone Transmitter1 * Telephone Receiver1 * Connection Cable1 * Telephone Line1 * Users' Manual(English)