Model:-SB-204
The SB-204 by SuperSync is a fully programmable school bell timer with SD card-based MP3 playback. It allows you to schedule custom tones, prayers, anthems, or announcements for each day of the week using 24 programmable timetables. With built-in amplifier control, it automatically powers your audio system on/off as per schedule. Its compact, wall-mountable design, digital LCD interface, and memory backup make it ideal for schools, factories, temples, and societies. No PC or software is needed—just insert your SD card and set your timings. For automated, reliable audio scheduling, choose SB-204.
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feature's
| S.No. | Feature | Description |
| 1 | Programming Interface | Wi-Fi enabled; can be programmed using a mobile, laptop, or tablet through the browser-based interface (no software installation needed). |
| 2 | Daily Bell Capacity | Supports up to 50 bell schedules per day, suitable for complex school routines. |
| 3 | Multiple Schedules | Up to 8 independent schedules can be programmed (each with 50 bells) for different days or events (e.g., Summer, Winter, Exam). |
| 4 | Audio Playback | Plays MP3 format audio files stored on a connected microSD card for bell tones or custom announcements. |
| 5 | Bluetooth Music Playback | Supports Bluetooth audio streaming for music or announcements (optional use, does not affect bell scheduling or ringing). |
| 6 | Output Connections | – 220V AC Output for amplifier power control – 6.35mm AUX (1/4″ jack) for sending audio signal to amplifier AUX IN. |
| 7 | Display | 16×2 character LCD display shows the current time, active schedule, and bell preview/diagnostics. |
Amplifier
SuperSync offers a complete range of amplifiers including 20+20W, 80W, 120W, 160W, and 250W models, designed for clear and consistent audio in schools, factories, and public venues. The 20+20W is ideal for classrooms and small zones, while higher models like 80W to 250W power large halls, corridors, and outdoor areas. All amplifiers support 100V line speaker systems and integrate smoothly with bell timers like WB-06 and SB-204. Built for durability and clarity, these amplifiers deliver distortion-free sound even at high volumes. Choose SuperSync for reliable, scalable, and high-performance audio systems.
Speakers
SuperSync offers a wide variety of speakers tailored for school and institutional use, including Ceiling Speakers, Column Speakers, Horn Speakers, Wooden Speakers, and Wall-Mount Box Speakers. Each type serves a specific purpose: Ceiling Speakers for classrooms and offices, Column Speakers for halls and corridors, Horn Speakers for outdoor zones, Wooden Speakers for rich audio in auditoriums, and Wall-Mount Box Speakers for versatile use. All models support 100V line systems and pair perfectly with SuperSync amplifiers and bell timers like WB-06 or SB-204. For clear, reliable sound across all zones, trust SuperSync’s speaker solutions.
Amplified Speaker
The Amplified Speaker 10 Watt by SuperSync is a compact and efficient audio device designed for classrooms, coaching centres, and office spaces. Delivering clear, distortion-free sound, it is ideal for announcements, bell tones, and alerts. With a rugged MS metal enclosure and 10W RMS output, it ensures dependable performance in institutional environments. This speaker is easy to mount on walls or place on desks and integrates perfectly with SuperSync’s WB-06 and SB-204 automatic bell timers. Optimized for voice and tone clarity, the 10W amplified speaker is trusted by schools and professionals for reliable audio coverage in small to medium spaces.
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