Caller ID Telephone Color: black Main features: Caller ID, normal function, 10 groups of shortcuts. Caller ID telephone, can show caller ID, convenient to dial back. With backlight, caller id, 10 sets of speed dial storage keys, call hands-free,volume control button, dial back the number function. Suitable for office, home, hotel, restaurant, etc. Can be placed at the desk, easy to install and use. Easily operation, clear keys, with 10 set of shortcuts key. Package List: 1 x Connecting line 1 x Telephone 1 x Instruction 1 x Network cable Note: This product is semi-hands-free, we can hear the other party's voice when hands-free, but the other party can't hear us Manual measurement of all sizes will have an error of 1-3 cm, please understand.