Smart Classroom PA System
100w
Amplifier power
20m
Effective use distance
6h
Battery life
Magnetically attaching
Paring way
Portability. Hygiene. Effortless speaking
ValueSTek Smart Classroom PA System was designed to address the demanding needs of teacher’s throat protection, cleanliness, hygiene, and ease of using. The system includes a pair of ValueBar Column Speaker VT-S50A/B, one piece of ValueMic Wireless Microphone VT-MIC06 and a piece of Receiver Box VT-AS16. Equipped with Hall effect sensor, it is super easy for each wireless microphone to match receiver box in different classrooms. Teachers can enjoy with their own wireless microphone to give a lecture for sonic accuracy and high output with exceptional detail to the whole classroom. Free-pressure to their throats and concernless to share with other users, clean and hygienic.


Freely wear, freely express
Has an omnidirectional magnetic-collared microphone. Its omnidirectional pickup allows flexible wearing and accurate sound capture. Built-in advanced DSP algorithms restore true sound, ensure clear quality, and effectively suppress whistling, offering a stable, pure audio for teaching.
Convenient and hygienic with one touch
Comes a unique magnetic pairing connection, allowing for easy one-touch pairing. It comes with an exclusive charging case for wireless MIC. One teacher, one microphone, clean,
hygienic and easier for equipment management.


Sound enjoys ≤20m
The wireless mic and receiver have excellent transmission, with a 20-metre range. Teachers can move freely anywhere in the classroom without sound-transmission concerns.
Powerful sound, unlimited expansion
Has 100W high-fidelity speakers, delivering full, mellow sound with every detail restored. It comes with numerous audio I/O interfaces, expanding functionality. These allow easy cascading of multiple speaker sets, multiplying sound output to cover a larger area effortlessly.


Charges fast and last
Power for up to 6 hours with a smaller, more capable case. The wireless microphone is equipped with a dedicated capable case, which is exquisite and compact, easy to carry, and can be charged anytime and anywhere to ensure that you can talk longer.You won’t find a more capable case in the industry.
Specifications
Speaker
100W
Amplifier Power
20m
Effective use distance
Wireless/2.4G
Communication method
150Hz ~ 15kHz
Frequency Response
DSP
Whistling Suppression
Microphone
20m
Effective use distance
11g
Weight
6H
Battery life
Warranty Policy


ValueSTek provides PA system products with a one-year warranty
The Role of PA Systems in Teaching Applications
The ValueSTek PA system is designed to equip each teacher in the classroom with a dedicated microphone, delivering value across several key dimensions.
By providing teachers with individual microphones, the system effectively eliminates the risk of cross-contamination associated with shared microphones. At the same time, it ensures clear user attribution and ownership, enhancing both convenience of use and standards of hygiene.
From an instructional perspective, dedicated microphones significantly improve sound quality and the uniformity of sound distribution. These devices are typically equipped with advanced technologies such as dynamic noise cancellation and adaptive feedback suppression, which filter ambient noise and prevent acoustic feedback. As a result, the system delivers high-fidelity amplification with consistent coverage throughout the classroom, preventing situations in which some students cannot hear clearly or teachers experience vocal strain. This design supports effective classroom management and is particularly beneficial for language instruction, where accurate pronunciation and clarity are essential.
The system is also engineered to accommodate diverse teaching environments. Multiple PA systems can be interconnected to address sound reinforcement requirements in large or oversized spaces. With audio input interfaces, new mobile microphones can operate in parallel with legacy fixed installations, or be combined with handheld microphones in specialized classrooms, enabling flexible configurations that adapt to different room layouts and teaching preferences.
In addition, microphones with omnidirectional pickup capabilities allow teachers greater freedom of movement and hands-free operation, reducing physical burden during instruction. Device management is likewise simplified: charging storage cases enable microphones to be recharged while being stored, eliminating the need for frequent battery replacement and reducing overall maintenance and management costs.


































