Multimedia language laboratory system, which adopt advanced digital and network technology. HL-4800F Multimedia language laboratory system, which adopts advanced digital and network technology, this language learning system hardware kernel adopts international standard, so.thelanguage learning system has excellent advantage and stability.HL-4800FMultimedia language laboratory system not only contains the main function of traditional analogue learning system, but also avoids the audio-serial disturb problems and the frequent mechanical failure. Further more, HL-4800F Multimedia language laboratory systemis with powerful examination and test paper edition function. Features and main functions 1) Broadcast teaching function 2) Teacher lecture 3) Teacher ask question 4) Dialogue individually 5) Students raise hand 6) Outside media play 7) Student's demonstration 8) Grouping teaching function 9) Group meeting 10) Teacher monitor 11) Teacher explain 12) Standardization exam function 13) Listening exam 14) Random exam 15) Powerful A/B paper exam 16) Powerful Oral exam 17) Exam analysis 18) Self-study function 19) Audio order 20) Text order 21) Repeat 22) Exam by oneself 23) Consult dictionary24)class name edit25)student name edit26)E-board27)Student management system