Designed for classroom scenarios, the Qtenboard Classroom Audio System adopts 2.4G digital radio frequency technology to avoid interference, supports 1000 sets of non-channeling frequency for large-scale use. It features an integrated 2.4G signal receiving box (no exposed antenna) for stable signal, a broadcast priority interface for automatic switching, and comes with wall-mounted accessories for easy installation. The matching microphone supports handheld/lavalier dual modes, laser pointer, and PPT page turning, meeting interactive teaching needs.
| Parameter Category | Specifications |
|---|---|
| Core Technology | 2.4G digital radio frequency (2400~2483.5MHz) |
| Rated Power | ≥50W |
| Rated Impedance | 4Ω |
| Driver Configuration | 5.5-inch long-stroke bass driver + 1 tweeter |
| Input Interfaces | 1×broadcast input (70V-110V), 1×stereo RCA, 1×microphone |
| Microphone Battery Life | ≥8 hours (full charge) |
| Working Temperature | -20~75°C |
| Cabinet Material | Wooden (black) box + steel mesh |
Anti-Interference & Large-Scale Use: 2.4G digital RF technology ensures no signal interference; 1000 sets of non-channeling frequency adapt to multi-classroom simultaneous use.
Stable Signal Reception: External integrated 2.4G receiving box (no exposed antenna) reduces internal electromagnetic interference, improving signal sensitivity.
Intelligent Broadcast Switching: Broadcast priority interface automatically switches to broadcast signal when received, ensuring important notifications are not missed.
Versatile Microphone: Supports handheld/lavalier modes (3.5mm external mic interface); has laser pointer, PPT page turning, and one-key screen blackout.
Energy-Saving Design: Microphone enters standby after 60s inactivity (auto-wake on operation); rechargeable detachable lithium battery with travel/USB charger.
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