System description:

ProLang® lab is developed for learning and teaching foreign languages in a modern and interactive way with a strong involvement of students in participating in the class. The system allows monitoring and controlling the entire classroom; it helps in assimilating information and the spelling words more easily than by any other traditional method of learning.

Using and storage temperature: 15°C - 40°C

The system contains:

Teacher console

It is a digital electronic unit, commanded by a microcomputer that includes students microphone mixers, 4 internal amplifier for the 4 groups of students; it has a short-circuit protection for each individual item, teacher microphone input, teacher headset output, 3 auxiliary inputs (PC and Aux2 AUX1), serial interface (RS-232C), auxiliary output for external amplifier or recorder boxes.

Voltage Power: 230V ± 10%/50 to 60Hz

Power consumption: maximum 60W

Number of independent groups working: 4

Pairs of conversation: depending on the teacher settings

Noise ratio: >60dB/A

Amplifier: 4 channels for personal protection for every student unit; minimum 100mW/microphone

Inputs: student microphones (15, 20, 28, 32 or 40 pieces), PC Audio, AUX1, Aux2

Outputs: 4 amplified lines for each group headsets, teacher headset audio PC connection, AUX1

Response Frequency (Output Aux): 20 - 15000Hz

Input level for external sources: 100mV - 3V/10kΩ

Headphones: impedance between 10Ω and 2000Ω, the wireless headset microphone volume control: minimum 100mV/200Ω

Console dimensions: 430x235x88mm; metal case 19”

Weight: 4kg

Pupils units

Are fixed units on furniture and are designed for connecting headsets and for calling teachers by pressing a button of “rising hand”

It has: inputs for headphone and microphone, stabilized voltage source and the “rising button”.

Units dimensions: 60x120x40mm

Number of units: 15, 20, 28, 32 or 40 units depending on class size

ProLang® Software

Operating System: Microsoft Windows (including Vista)

PC resources for installing and running: CD-ROM, minimum 10MB available on hard disk, serial port

System configurations: the system allows configurations of 15 students, 20 students, 28 students and 32 students with possibility to extend up to 40 students.

Warranty: 2 years

Using manual: in Romanian language