Dual port Extension Set Corded Telephone With Caller ID Display With Speakerphone(Black) Features: 1. LCD Display - LCD screen displays real-time date, call time record, incoming call number, etc. 2. Clear Sound - Noise cancelling function helps keep noise outside to let you have clear communications. 3. Extension Set - Comes with dual port design. Supports extension set. 4. Large Buttons - Adopting large buttons to let you see every number and letter clearly. 5. Made of ABS, sturdy e. Specification: Material: ABS Size: about 22*22.5*7cm/8.66*8.86*2.76in Color: White, Black(optional) Model: KX-T880CID Main function: with blue screen 8 groups of quick storage keys, caller ID, hands-free calling Package List: 1 * Corded Phone with Speakerphone 1 * Phone Cover 1 * Phone Cable 1 * Dual-port Cable Note: 1. The product does not have an answering machine function. 2. Small volume or no sound need to first adjust the volume according to the instructions, if the adjustment is not normal, you need to check whether the handset connector is loose, there is an old handset can be replaced with an old handset to determine whether it is a new handset connecting line has a problem, to determine the new handset has a problem need to notify customer service to deal with. 3. The product can only be bound to one phone number.