... of 3 years free service.♥Size: 7", 10", 15", 19", 22", 32", 42" and 55" LCD digital signage/advertising ... stores, pharmacies/drug stores, hotels and restaurants, corporate communications, for promoting sales, shelf edge advertising, guide instructions and more;♥Very ... the sensor detects an approaching viewer; This function can be disabled or enabled♥Function keys on the players, they can be turned ...