opinion controller wire or wireless

• Customers’ opinion or appraisement to operator for his service • With the operator’s photo • 3 buttons: Satisfied, Accepted, Dissatisfied • 9 buttons:we can make the function button for you need. • All the statistics will be sent to ticket dispenser • It has two types, one is work with our touch luxury system, and one is work with computer. • Size: 11.8cm*15.4cm*11.5cm The accessory of queue machine.