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Created on 02.05

CT/HC720II Portable Emergency Public Address System Product Manual

CT/HC720II Portable Emergency Public Address System
Product Manual
Red portable loudspeaker with side handle and control panel featuring buttons, dials, and a microphone.
1. Product Overview
The CT/HC720II Portable Emergency Public Address System is a high-performance, directional sound amplification device designed for emergency response and challenging environments. Utilizing advanced phased-array acoustic technology, it delivers focused sound beams for clear, long-range communication—up to 1,000 meters. Ideal for disaster relief, public safety, traffic control, and operations, it ensures reliable communication even during power outages, network failures, or high-noise conditions.
Control panel with labeled switches and ports for audio and charging functions.
2. Key Features
  • Directional Sound, Precise Coverage
  • Long-Range, High Penetration
  • Portable & Rapid Deployment
  • Multi-Mode Operation
  • Rugged & Weather-Resistant
3. Technical Specifications
Item
Specification
Model
CT/HC720II
Operating Mode
Directional Acoustic Amplification
Max Effective Range
≤1,000 m (varies by environment)
Audio Input
Handheld Mic, Bluetooth, AUX, TF Card
Battery Type
Removable Li-battery (DC 12V/24Ah)
Operating Time
≥8 hours (continuous)
Charging Methods
AC Power / Vehicle Charger
Protection Rating
IP56
Operating Temperature
-20°C ~ +60°C
Unit Weight
≤18 kg (with battery)
Storage Support
TF Card, up to 128 GB
4. Operating Instructions
  1. Power-Up & Setup
  1. Connect Audio Source
  1. Broadcast
  1. Shutdown & Storage
5. Safety & Precautions
  • ❗ Do not operate within 1 meter of people for extended periods—risk of hearing damage.
  • ❗ Avoid water exposure to ports during rain; dry thoroughly after use.
  • ❗ Use only original batteries and chargers to prevent fire hazards.
  • ❗ Do not operate in flammable or explosive environments.
  • ❗ Discontinue use if device overheats or produces unusual noises.
6. Maintenance & Storage
  • Clean surface after each use—remove dust and moisture.
  • Recharge battery monthly to maintain performance.
  • Store in a dry, ventilated area—avoid corrosive gases.
  • Inspect cables and fasteners periodically for wear or looseness.
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