**********The watch screen has a protective film that can be removed before use; otherwise it may affect your normal use and make you misunderstand the watch as old; 1 wrist pagers and 1 SOS call buttons; the idea is for both caregiver and patient; elderly; resident; handicapped; sick; aging parents; freedom while still calling for help at home; no need to yell to get someones attention*****USB charging cable and rechargeable 400mAh lithium battery for wrist watch pager; 2pcs 3v cr2016 battery for SOS call button; long service life; both call buttons and watch can be added max 500 pcs; more suitable for places where there are many elderlypeople need to be take care of like nursinghome*****150m or 492ft working range in open area; patients and caregiver can do their own things freely; no need to stay close all the time; date; current time display*****Call buttons can be hang on neck as pend by lanyard; small size; easy to put in pocket; comfortable button; easy for patients or ill-heal