**********Note; a protective film is affixed to each watch in order to prevent it from being scratched during inspection and transportation; it is recommended to remove the protective film before use so that the data information on the screen can be clearly seen*****5 Modes; choose from vibration; buzzer; light; prompt time and cycle time also adjustable; max. add 500 users; more fit for scene where many patients need to be take care of; like hospital*****400mAh rechargeable battery and USB charging slot design on watch pager system; about 4 hours full charged and can use 2 days; caregiver call button use more than 12 months; service time more than 6 months; no need to replace battery frequently*****150m operating range in open area; it is convenient for upstairs and downstairs or like the kitchen washing room where is enclosed and noisy can be installed separately*****Emergency call buttons have lanyard hole on back; neck strap also included; can be hang on neck as pendant; small si