Parts of a phone

13. headset

a set of headphones, often with a microphone attached
（尤指带麦克风的）耳机

14. wireless headset

/ˈwaɪərləs/

wireless
relating to a system of communications that does not use electrical or telephone wires

15. calling card = phonecard

17. answering machine = answerphone

a machine that records your telephone calls when you cannot answer them

18. voice message

19. text message = text

a written message that is sent or received on a mobile phone