CT/HC720II-4G Portable Networked Directional Acoustic System
138dB Tactical Voice Projection • 1000m Range • IP56 Rugged • 8-Hour Battery • 4G Remote Control
Command from anywhere. Communicate with precision. Respond without delay.
The CT/HC720II-4Gis a next-generationnetworked portable acoustic hailing device (AHD) engineered for police, border units, disaster response teams, and critical infrastructure operators who need long-range voice clarity, remote control, and rapid deployment in high-stakes environments.
With 138dB peak output, a 20° focused beam, IP56 protection, and 8+ hours of battery life, it delivers unmatched mobility and reliability—whether mounted on a patrol vehicle, carried by a single responder, or deployed in a disaster zone with no infrastructure.
Fully networked. Fully operational. Ready in seconds.
✅ Why Agencies Choose CT/HC720II-4G
🔊 Precision at Long Range
The 20° directional beam ensures your message reaches only the intended audience—critical for de-escalation, crowd control, or rescue operations in sensitive zones.
🌐 True Networked Command
Control one or hundreds of units from a central platform or mobile phone. Issue live voice, pre-recorded alerts, or emergency broadcasts—even when you’re miles away.
🔋 All-Day Operational Endurance
With 8+ hours of built-in battery life, the CT/HC720II-4G outlasts most shifts. No external packs. No downtime.
🛡️ Built for Extreme Environments
IP56-rated for sandstorms, monsoons, coastal salt spray, and desert heat. Deploy it anywhere—from Arctic borders to tropical flood zones.
📱 Modern, Secure Communication
Supports encrypted 4G/5G links, integrates with existing command systems, and includes multilingual voice support (50+ languages, custom recording included).
🌍 Real-World Emergency Response Scenarios
🌪️Natural Disasters (Earthquake, Flood, Landslide)
- Deploy: Single-unit carried by rescue teams into communication-blackout zones
- Use: Broadcast “Tap to respond!” to locate survivors; guide evacuations via clear voice commands
- Result: Faster search, fewer casualties, reduced reliance on visual signals
🔥Industrial Fires / Chemical Leaks
- Deploy: Set up 500m upwind as a mobile warning station
- Use: Cycle safety instructions (“Evacuate now—follow green lights!”) while blocking unauthorized entry with deterrent tones
- Result: Controlled perimeter, minimized panic, zero physical contact
🏟️ Mass Gatherings (Concerts, Sports, Protests)
- Deploy: Fixed at exits or on patrol vehicles
- Use: Direct crowd flow with calm, authoritative voice; prevent stampedes before they start
- Result: Orderly movement, reduced need for physical intervention
🕵️ Counter-Terrorism / Hostage Situations
- Deploy: Concealed on rooftops or behind cover
- Use: Relay negotiator’s voice remotely; apply short 138dB pulses to non-lethally disrupt aggressors
- Result: Enhanced officer safety, psychological advantage, ethical force escalation
🦠 Public Health Emergencies (Pandemics, Quarantines)
- Deploy: Mounted on community patrol vehicles
- Use: Broadcast multilingual health orders; deter violations without face-to-face contact
- Result: Lower infection risk for frontline staff, higher compliance
All scenarios tested in live exercises across Asia, Middle East, and Latin America.
🆚 How It Compares
| Feature | CT/HC720II-4G | LRAD 100X | Generic 4G Speaker |
|---|---|---|---|
| Peak SPL | 138 dB | 137 dB | ≤125 dB |
| Beam Focus | 20° | 30° | Omnidirectional |
| Battery Life | 8+ hours | 4–6h (with pack) | 2–4 hours |
| Network Control | Yes (4G/TCP/IP) | Limited (via add-ons) | Basic app only |
| Environmental Rating | IP56 | IP54 | IP40–IP54 |
| Weight | 6.0 kg | 6.8 kg | 3–5 kg (but low power) |
| Best For | Networked emergency response | Maritime fixed sites | Low-risk announcements |
CT/HC720II-4G = The only portable AHD that combines military-grade acoustics, true networking, and all-day endurance.
🛠️ Easy Integration & Global Support
- Plug-and-play networking: Auto-connects to your command center via 4G or LAN
- Multilingual service: Record custom messages in Arabic, Spanish, French, Mandarin, Swahili, etc.—included at no cost
- Emergency templates: Pre-loaded voice scripts for fire, earthquake, active threat, pandemic
- Global certifications: Assistance with CE, FCC, SASO, INMETRO, SONCAP
- 12-month warranty + 24/7 technical support









