1. support push button triger 2. support RF remote control 3. integrate HH:MM:SS ,MM: ... bright led lamp2. wide view angle : 100/403. many optional controller: RF wireless remote(300 meters and 800 meters can be ... choosed), RF USB transceiver, RS485, etc.4. many optional digit height : 6",8",12",16",24",32"5. message board ... such line product , please contact us for more details. led digit timer