1. CAT5 network cable guarantees the power supplying, data switch, communication control and VGA transmission.
2. Digital audio switch uses the standard USB2.0 interface connected with the master computer.
3. High speed digital audio mix& transmission capacity makes the voice delay less than 1 ms.
4. Advanced semiconductor embedded(DSP) technology to make the system highly integrated, simple and stable.
5. Low-carbon, environmentally friendly, energy-saving.
1. 5 inch LED display
2. One student uses one terminal. Monitor is optional
3. Standard keyboard & mouse interfaces
4. High quality audio & video & text on demand
6. Keeping the same tune while changing voice speed
Teacher can broadcast his voice or other audio material to a single or all students
Teacher can broadcast his video material to all students
Teacher can broadcast his screen to the student
Teacher can monitor or observe selected student’s work or view their screen
Dialogue /Voice Intercom
Teacher can dialogue to single, selected or all students
Teacher can divide the students to any group for discussion randomly
Student can transfer his homework to the teacher’s computer
Record the teacher’s speech or student’s practice to teacher’s Hard Disk. When necessary, teacher can export the file for comparison
Record and Repeat
Teacher or student can record their voice then listen to or repeat their voices for better pronunciation and intonation.
Teacher can broadcast VCD/DVD in his computer and transfer to the student’s screen
Teacher can edit words or questions on the whiteboard during teacher
Teacher can arrange the students to race to be the first one to answer the question
SELF STUDY FUNCTIONS
Student can select audio learning resource and broadcast in his own terminal. The terminal support WAV, MP3, WMA, RA, OGG, AC3, APE, AIF and also on demand AVI, WMV, RM, RMVB, MPEG, ASF, MOV (audio part).
Student can select text learning resource and broadcast in his own terminal. The turning speed can be set by the teacher or adjust by the student themselves.
Student can speak to any online classmate randomly
Variable speed playback
Student can change the speed of audio material
Synchronous playback of
sound & text
The sound and text can be broadcast synchronously
Teacher can select 1 to 12 students to interpret simultaneously and transfer their voice to other students. The audience also can select the interpreter.
Standard mouse and keyboard input
Independent Examination and Assessment
Student can choose the paper from the resource library and the system will help to evaluate
Mode of papers sent
Support A-B examination, random examination, oral examination and writing examination
Student can answer questions on the paper
Teacher can edit paper for the students
Teacher can control or operate student’s terminal directly
Teacher can lock single, part or all students’ screen to call them to concentrate on the class
Set the system
Electronic roll call
When teacher sent the roll call command, student’s information like name, class etc. will be showed on the teacher’s interface
Equipment Composition(For 30 seats)
Digital Audio-Video Data Switch
Shaanxi Greelan Technology Development Co., Ltd has been providing digital language learning system, lab equipment and lab software since 2003. Our products are widely used in the schools and universities throughout the world with certificates FCC, CE, ISO9001, ISO18001, CCC etc. Till now, we have got 12 hardware patents and 4 software copyrights. GREELAN aims to help people learning language easier and happier.
Packing: plastic bag with foam inside and cartons outside
a. Teacher’s terminal: 1pc per carton / carton size 51*37.5*34.5cm
b. Student’s terminal: 16pcs per carton/ carton size 56*48*35cm
c. Headphone: 40pcs per carton/ carton size 59*44*46cm
Shipping: By express, by air or by sea
1. One Stop Service
a. Pre-sales: make a comprehensive project plan for customer.
b. After-sales: offer customer service whenever you have a question.
2. Advanced Technology
a. Hardware: less equipment to make the connection easy and save the cost.
b. Software: simple, practical and multifunctional.
3. High Standard Quality Control
a. Strict inspection during the production.
b. Careful test of every equipment before shipping.
4. Fast and timely delivery
a. Product preparation: 7-10 days.
b. Delivery: timely delivery once the goods are ready.
1. Sample Time: 2-3 days
2. Delivery Time: 7-10 days after deposit
3. Payment Term: T/T, L/C, West Union