1, wireless queuing management system 2, touch screen customers ... Windows display(Can be customized) 4.8mmLED dot matrix module, single red, 16 dot matrix, resolution of 64 ... % Concentration display(Can be customized)5.0mmLED dot matrix module, single red, 16 dot matrix, resolution of 64 ... , weight: 100 grams7, key numbers: 17 wireless queuing management system... wireless queuing management system