1. Nurse watch can show 3 group call number in one time 2. Nurse call systems watch can indicate different service type via words or alphabet. ( call; bill; drink; dessert; help etc and A-Z) 3. Home nurse call systems watch can record when the call come in and count the call times of each number 4.Nurse watch can track the history calling info by up and down 5.Nurse wrist can show current time when stand-by.