Uneven sound distribution in classrooms? Poor listening experience?

Teaching effectiveness hindered by wearable devices?

Students in the back can’t hear clearly, with high latency and noise?

...

Discover how the itc SparkLink Wireless Microphone Teaching Sound System solves these issues. No more cable restrictions and smart noise reduction achieve high-definition, lossless audio transmission for teaching.

■itc SparkLink Wireless Microphone Teaching Sound System is designed specifically for teaching scenarios. It adopts SparkLink wireless transmission technology and an RISC-V chip, featuring strong anti-interference, low latency, and lightweight portability to support flexible teacher movement and uninterrupted teaching. It delivers a stable wireless sound amplification experience, so teaching is clearer and more efficient.

Pain Points in Classroom Sound System

❌No frequency conversion technology → interference problems

❌Short transmission distance→ back rows can’t hear clearly

❌Shared devices → cross-infection risk

❌Long continuous wear → discomfort for teachers

■itc SparkLink Wireless Microphone Teaching Sound System

✔Automatic frequency-hopping for strong anti-interference

✔Long transmission range covering the entire classroom

✔One teacher with one mic, hygienic and clean

✔Small, lightweight, and comfortable to wear

System Components

✔Wireless Microphone

Lithium battery for 6-hour runtimeCharging case supports 3 quick recharges

✔Wireless Receiver

NFC quick pairing, three output interfaces

86-type box design for easy installation

✔Speaker

High-fidelity sound quality

Can provide power to the receiver

System Highlights

Key Technologies

SparkLink Wireless Transmission Technology

This new generation of short-range wireless communication technology combines the advantages of Bluetooth and Wi-Fi, achieving low power consumption and high speed. Built-in frequency hopping anti-interference and Polar channel coding ensure uninterrupted voice during teaching and significantly reduce interference.

Feedback Suppression

Built-in adaptive room feedback prediction and cancellation algorithm eliminates howling without distortion, requiring no on-site configuration.

Intelligent Equalization

Automatically recognize speech spectrum and optimize output spectrum based on the teacher's voice.

Automatic Gain Control

Adjust received signal strength to maintain consistent volume as the teacher moves and speaks, preventing volume fluctuations.

Intelligent Noise Reduction

Automatically detect and filter environmental noises like air conditioning and fan sounds for clear audio.

Product Advantages

Low Latency

Latency below 15ms significantly enhances classroom interaction. Students won’t be distracted by dual voices or echoes when the teacher moves around, ensuring smooth teaching

Robust Anti-Interference

SparkLink Low Energy(SLE) technology uses efficient single-carrier transmission, QPSK modulation, and Polar channel coding. Through efficient spectrum use, strong error correction, and automatic frequency hopping, it minimizes interference and ensures stable audio transmission in complex environments.

High-Fidelity Sound Quality

With 48KHz sampling rate, 24-bit quantization, and 4Mbps transmission bandwidth, it achieves an objective MOS-LQO score of 4.6 (scale 1.0–5.0, higher is better) on the Visqol perceptual model-based evaluation tool.

Long-Distance Transmission

Transmission range up to 60 meters. Polar code technology enhances signal reliability over distance, while 4Mbps high bandwidth ensures more data transmission with reduced attenuation and interference.

Low Cost

Built-in adaptive feedback cancellation, automatic gain control, smart noise reduction, and EQ reduce debugging costs, achieving plug-and-play. Simple cabling, 86-type box design, multi-interface output, and strong compatibility simplify installation and maintenance.

One Teacher, One Mic

Dedicated microphones for each teacher prevent hygiene issues from sharing and enhance teaching professionalism and personalization.

Hands-Free Operation

Ultra-lightweight 10g coin-sized design and magnetic lapel attachment frees teachers' hands and reduces teaching fatigue for a more relaxed experience.

itc SparkLink Wireless Microphone Teaching Sound System empowers education with technology and refines teaching experiences through detail. It is not just a sound amplification device but a digital solution that safeguards the health of teachers and students and elevates teaching quality. If you need professional advice or project consultation services, feel free to contact us at info@itc-pa.com.cn.