... make a good repast enviroment OEM is acceptable specification1) Portable and delicate wrist watch receiver.2) It can receive ... night clubs, cafeterias, tea houses, bowling alleys, bathe rooms, massage house, casinos,hospitals, health clubs, super market, factory production lines ... Bell:Send call signals without wires Compatible with all main units:Work with GDH100, GDH400, GDH500, GDH300 Long Life of ...