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China manufacture hot-sale digital language learning

China manufacture hot-sale digital language learning

Категория: Language Learning >>>
Поставщик: Shaanxi,Greelan,Technology,Development,Co.,Ltd.

Цена:*

Количество:

Описание и отзывы

Трекер стоимости

Месяц	Минимальная цена	Макс. стоимость
Sep-17-2025	0.30 $*	0.36 $*
Aug-17-2025	0.84 $*	0.39 $*
Jul-17-2025	0.71 $*	0.68 $*
Jun-17-2025	0.99 $*	0.76 $*
May-17-2025	0.0 $*	0.1 $*
Apr-17-2025	0.64 $*	0.17 $*
Mar-17-2025	0.65 $*	0.82 $*
Feb-17-2025	0.69 $*	0.80 $*
Jan-17-2025	0.34 $*	0.69 $*

Характеристики

Product Description

Product Structure: 2 students use 1 terminal and 1 monitor. 1 student needs 1 PS2 keyboard and mouse. (USB updating) Student can watch video. It has basic functions of language lab.
Teacher’s Computer (Monitor + Host): Cannot use laptop/ IPad/ Notebook. CPU: I5/RAM: 4G, 1T. Host need use VGA port, cannot use DVI, HDMI port type host. More than 6 USB port.
Computer system: Win7/8/10-32Bit/ 64Bit (updating)

Product Structure:

2 students use 1 terminal and 1 monitor.

1 student needs 1 PS2 keyboard and mouse. (USB updating)

Student can watch video.

It has basic functions of language lab.

Teacher’s Computer (Monitor + Host):

Cannot use laptop/ IPad/ Notebook.

CPU: I5/RAM: 4G, 1T.

Host need use VGA port, cannot use DVI, HDMI port type host.

More than 6 USB port.

Computer system:

Win7/8/10-32Bit/ 64Bit (updating)

speech lab (6)

Product Functions

TEACHING

1. Audio Broadcast 2. Video Broadcast

3. Whole Talk 4. White Board

5. Demo 6. Quiz

7. Intercom 8. Monitor

9. Screen Demo 10. Record Course

11. E-Respond 12. System Setting

13. Warning Lock

GROUP TEACHING

1. Meeting 2. Automatic Meeting

3. Manual Meeting 4. Discuss

5. Chat-Room 6. Group-Cast

EXAMINATIOIN

1. Paper Edit 2. Test

3. Grade Spoken 4. Test

TRANSLATION

1. Segment-T 2. Synchronous-T

3. Simulation-T

SELF-STUDY

1. Audio Text On Demand 2. Self-Exam

3. Free Discuss 4. Dialogue

5. Record And Repeat 6. Dictionary

7. Database

Product Effects

LANGUAGE LAB CLASSROOM SHOW

Technical Parameters

System	1. MTBF: more than 1000 hours, Crash and failure dropped≤ 1. 2. The success rate of terminal start: 100%. 3. Conditions of Use: -10- 45 ℃. 4. Relative Humidity: 20% -80%. 5. Atmospheric pressure 86-106Kpa. 6. System power supply 220V ± 22V AC voltage. 7. Power frequency: 50 ± 2.5Hz.
Audio Data Switch	1. Of 128 44.1 KHz/16bit audio data transmission, voice delay <1ms. 2. Power supply: standard 220V ± 22V power supply, output voltage: 9V. 3. Intelligent switches: all the students’ terminal power supply unified by audio data switch. 4. SNR> 80dB, distortion <1%. 5. Three-in-one network port (power supply, communication control, data exchange).
Student Terminal	1. Continuously variable transmission to the same tune: 50% - +200%. 2. SNR> 80Db. 3. Frequency Response: 125Hz-10.0kHz (± 2dB), more than 16-bit linear sampling. 4. The recording time: ≥ 600 minutes.
Headset	Headphones: 1. Frequency Response: 125Hz ~ 8000 Hz, ± 17 dB (0dB = 20uPa The) (input power = 1mW). 2. Electrical Impedance: 32Ω± 20%. 3. Sensitivity≥ 100dB/1mW (0dB = 20uPa). Microphone: 1. Frequency response: 40-20000HZ. 2. Type: electrets microphone. 3. Sensitivity: -47 ± 2 dB (0 dB = 1V/Pa). 4. Directional type: two-way.
Voice Delay	1. broadcast≤1ms. 2. Intercom≤1ms. 3. Breakdown time: 0.
Network	1. Three-in-one network mode. 2. Power supply, data exchange and communication control through CAT 5/6.