Adolescence /ˌæd

labour-saving UK , US labor-saving /ˈleɪ.bəˌseɪ.vɪŋ/ /-bɚ-/ adjective
describes a device or method which saves a lot of effort and time
portable /ˈpɔː.tə.bl ̩/ /ˈpɔːr.t ̬ə-/ adjective
(designed to be) light and small enough to be easily carried or moved
a portable radio/telephone/computer
state-of-the-art adjective
very modern and using the most recent ideas and methods
a state-of-the-art computer
The control panel uses all the newest technology and is considered state-of-the-art.
up-to-date /ˌʌp.təˈdeɪt/ adjective
modern, recent, or containing the latest information
Great trouble is taken to keep our database up-to-date.
See also update
user-friendly /ˌjuː.zəˈfrend.li/ /-zɚ-/ adjective
If something, especially something related to a computer, is user-friendly, it is simple for people to use
a user-friendly interface/printer
a user-friendly instruction manual