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Месяц | Минимальная цена | Макс. стоимость |
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Sep-17-2025 | 0.72 $* | 0.20 $* |
Aug-17-2025 | 0.30 $* | 0.59 $* |
Jul-17-2025 | 0.95 $* | 0.74 $* |
Jun-17-2025 | 0.65 $* | 0.33 $* |
May-17-2025 | 0.74 $* | 0.47 $* |
Apr-17-2025 | 0.58 $* | 0.68 $* |
Mar-17-2025 | 0.89 $* | 0.92 $* |
Feb-17-2025 | 0.81 $* | 0.38 $* |
Jan-17-2025 | 0.97 $* | 0.44 $* |
GV2110B digital video language lab made entirely in digital audio and video signal flow form between students in the main control equipment and terminal storage, exchange and transmission, and get professional audio-visual effect;Transmission in the system to CD quality, voice delay time is less than 1 ms.System USES the international standard of star network structure, the main switch through a super five kinds of cable terminal power supply to all students, and two-way control signal, data, information and high definition video signal.
Student terminal external two sets of standard keyboard, mouse, computer operation mode, convenient input in both English and Chinese;Two students share a set of terminal and monitor, will display screen is divided in speech class, students sit at the same table split screen independent operations, each other, video broadcasting large screen display;With large screen display, need not five inch or 3 inch small LCD screen, easy to read and write, especially the writing test, already beautiful save a space again and cost.
1) 2 students share 1 terminal and 1 LCD monitor
2) High quality video broadcasting
3) High fidelity video processor
4)RJ11 port headset
Name: audio data switch
Brand: Greelan
Original:China
Audio data switch make the audio and video signals entirely in digital transfer, exchange and storage between teacher's computer and students' terminals.Audio data switch hosts 3 USB2.0 interface and the teachers computer exchanging data; It support Students with any combination group make discussion. The whole system using pure star network structure of the universal RJ45 network cable connection, while providing the power and transmiting the data of students ' terminal. All this is very safe and needn't any manual operation.
Name: Students' terminal
Brand: Greelan
Original: China
Metal housing, black spray plastic, dual-core architecture, high-fidelity audio and video processors, external ports: four-in-one network interface (including power supply and data exchange, communication control, HD VGA signal), HD VGA signal output port.
Name: RJ11 headset
Brand: Greelan
Original: China
Digital language lab special used, high tensile, flexural Helix using Crystal RJ11 connector, durable; Using balance transfer mode and shielding measures monitor effectively pulse and electromagnetic interference.
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Teaching Function, learning function, Test functions and Management functions | ||||||
Audio broadcast | Teachers can use to transmit his speech or other audio programs to specify a single, some or all of the students, It's very convenient for teachers to instruct in the classroom; Teachers can also broadcast the specified student voice to other students. | |||||
Video broadcast | Teachers can play any format of video files, and its broadcast to students. | |||||
Screen broadcast | The teacher can be broadcast their own screen to all students. | |||||
Screen monitor | Teachers use the system to observe the student's screen, know the students' status. | |||||
Online cinema | Teachers can play VCD/DVD on their own computer, let the students watch the video on their own screen. | |||||
Voice intercom | Teachers and students can realize real-time voice communication on their teaching process, the teacher could assigned the special students voice chat. | |||||
Group discussion | Teachers can organize the student to carry on the discussion in the group. the number of the students in a group is unconstrained. | |||||
Homework submission | Students can submit their homework to the teacher by the system, when the teacher received the homework, he can read over by system. | |||||
Electronic vies to answer first | Teachers can make some or all of the students to attend electronic vies to answer first test, then the teacher specify the student to answer the questions according to the result of system. | |||||
Electronic hands | Students can raise their hands by system to sends information to the teacher when they want to answer the teachers' questions. | |||||
Recording and read | Teachers and students can put their own voice on the system , then training reading of students and making the teachers' phonetic teaching easily. | |||||
Digital courseware | Can be the teacher lectures or student in digital format to record the contents of practice to teacher's computer hard drive the specified directory, and are free to export, convenient teacher students contrast study. | |||||
Audio on demand | On-demand audio teaching resources, in the mode of resource manager search access, support WAV, MP3, WMA, RA, OGG, AC3, APE, AIF, on-demand AVI, WMV, RM, RMVB, MPEG, ASF, MOV (audio). | |||||
Text on demand | On-demand text files, support auto flip reading, page-turning speed can be adjusted by the students themselves or designated by the teacher. | |||||
IP phone | Students can browse online classmates and choose one of them to talk to him. | |||||
Electronic dictionary | Voice electronic dictionary, students can online access to new words, rich thesaurus, capacity of more than 1 million. | |||||
broadcasting by difference speed | Students can on demand of the audio file for stepless modulation not play, adjust the voice playback speed range(50%~+200%). | |||||
The sound Synchronous playback | The system can broadcast the phonetic teaching courseware contained text, display the corresponding text, ensure the sound and the words synchronized. | |||||
Automatic voice in both Chinese and English | For students selected articles in both Chinese and English, the system can automatically spread pure pronunciation; Support real full text reading. Englishand Chinese document are not restricted. | |||||
Simultaneous translation (double) | Teachers can choose one to twelve students oral translation synchronous , and put the interpreter's voice transmission to the other audience, the audience can also customize to listen to the translation of different translators content | |||||
Keyboard input | Standard mouse leads in language keyboard input | |||||
Independent test Test and evaluation | The students are free to use the paper of item bank, when they submit the paper, the system automatically grading and send back the correct answer, explain and teacher's comments and other content, and automatically generate a variety of style of grade distribution, for students to study effect evaluation. | |||||
Test mode and The examination paper sending | 1) free test: support AB roll and multiple-choice answers, support the written examination examination paper and electronic text, voice paper paper, forming test paper sent to all students; 2) random test: test results real-time analysis, support the electronic text, voice, tape players such as paper, single sent to the students and real-time analysis of winding; 3) speaking test: test methods including electronic text, writing papers, speech paper, etc., can be sent one or more questions. 4) the writing test: students through a standard keyboard for both Chinese and English writing test, convenient and quick. | |||||
Students answer the paper | 1) Free exam: the standard answer answer mode, support radio, multiple-choice, ahead of papers, the teacher time unified winding, problem solving results according to the student student id or name save, corrects for analysis; 2) random test: the standard answer answer mode, support radio, multiple-choice, winding by the teachers, support the answer and teacher comments immediate echo; 3) oral exam: oral answer, the answer upload audio file using the Internet, in the student's name or student id save oral answer answer, convenient for teachers to read and support professional 4 and 8 speaking test; 4) can be AB grade examination papers, support multiple answers, output test forms including statistical reports and scores, etc.; 5) to support the answer echo, echo content includes the choice of the correct answer, the student the answer to the annotation, explanation and the teachers of the topic; 6) speaking test analysis: player playback students speaking test recording, teacher performance assessment and recordable compact disc preservation. | |||||
Paper making | 1) production standard test paper; 2) to make the right answer, explanation and teacher of the exam papers of the annotations, for test analysis and answers the echo; 3) from the Intranet import various formats of exam form massive test; Examination as a system resources open to the teachers and students, for teachers and students self test. | |||||
Remote monitoring | Teachers control students's termianl in individual, group or all the machine, the teacher monitor and monitor the student terminal operation and status , in order to maintain the normal order of teaching. | |||||
Remote control | Teachers can control and operate the student's terminal , make teachers and students terminal synchronous operation, including screen, operation and execution result , teachers can also lock the keyboard and mouse of students. | |||||
A black screen silence | Teachers can contral the screen and keyboard mouse locking, some or all of the students, to let the students listen to the teacher attentively. | |||||
System Settings | Mainly include volume adjust, command presets, broadcasting, remote control mode, the black screen mode and monitor mode, and The teacher lock their own computer. | |||||
Support network | Preparation lesson remotely , teaching resources sharing, courseware fully open. | |||||
Electronic attendance | The system support roll call function, named after , the teacher the operation interface and can display real-time information such as student name, student id, class, convenient teaching and management. |
Packaging | ||
Size | 1) Teacher's terminal: 1 pc per carton /carton size 51*37.5*34.5cm 2) Student's terminal: 16pcs per carton /carton size 56*48*35cm 3) Headphone: 40pcs per carton/ carton size 59*44*46cm | |
Weight | as actually weight | |
Packaging Details | as buyer's requirment |
91.8% Response Rate
91.8% Response Rate
91.8% Response Rate
Данные ресурс не является интернет-магазином, а лишь содержит ссылки на международную торговую площадку Alibaba.com