Description
DSPPA LRAS300 - 300W Active Special Acoustic Hailing Device
DSPPA LRAS300 is a 300W active special acoustic hailing device designed for long-range mass notification and voice communication. It features voice coil air cooling technology for rapid heat dissipation, ensuring stable performance during extended use.
Compared to standard acoustic devices, the LRAS300 delivers a 10 dB higher maximum sound pressure level (SPL), significantly enhancing sound transmission distance. It supports multiple audio sources including wireless microphone, Bluetooth, MP3, and FM, and allows remote broadcasting via phone calls.
Functionality:
- One-touch activation for alarm or dispersal sound
- Supports wireless microphone, Bluetooth, MP3, FM
- USB recording and playback of announcements
- Remote phone call broadcasting across the system
- Can be carried as a shoulder bag, backpack, or mounted on a tripod
- Supports parallel connection on vehicles and ships

Product Features:
- Rated Power: 300W (custom version >500W)
- Max SPL: 137 dB
- Sensitivity: 113 ±3 dB
- Speech Intelligibility: 0.8 at 100 meters
- Frequency Range: 400 Hz - 8 kHz
- Coverage Angle: 70° horizontal × 50° vertical
- Dimensions: 240 x 380 x 300 mm
- Weight: 9.8 kg
- Power Supply: Built-in battery, charged via DC12V adapter
- Warranty 2 years
DSPPA LRAS300 is a powerful and versatile solution for emergency services, public safety, civil defense, and any scenario requiring fast, intelligible mass communication in challenging environments.
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