1.High quality 2.4G Wireless Tour Guide System 2.Factory Price 3.Paypal accepted 4.NO MOQ ... 5.Fast delivery 2.4G Professional Digital Wireless Tour Guide System SOYO-WTG02Transmit frequency 2400-2480 MHz; Real digital transmit ... the factory, industrial tourism;Teaching training: schools, training institutes, conference rooms, auditorium, classroom lectures, seminars and other learning activities, ...