Audio Challenge Loudspeaker (4G-VoLTE)

The SPEAKER-4G Remote Audio Loudspeaker provides secure, two-way voice communication for live audio challenge, public announcements, and emergency alerts.

Designed as a rapid retrofit upgrade for existing systems, it connects via the 4G mobile network to deliver clear, immediate voice messages without the need for fixed lines or complex infrastructure.

Built with a durable, weather-resistant housing, the SPEAKER-4G is suitable for both indoor and outdoor use, making it ideal for car parks, remote sites, or industrial environments where reliable communication is critical.

4G GSM Connectivity: Stable and reliable operation with VoLTE support and 3G/2G fallback.

• Instant Audio Challenge: Broadcast live voice messages to deter intruders or issue safety instructions.

• Remote Activation: Trigger announcements via phone call, SMS, or predefined digital input.

• Multi-User Access: Allow multiple authorised users to broadcast remotely using registered phone numbers.

• IoT SIM Compatibility: Works seamlessly with multi-network ControlFreq IoT SIMs for continuous uptime.

• Durable Construction: Weather-resistant housing for demanding environments.

• Easy Integration: Simple retrofit for existing alarm or communication systems.

• Model: SPEAKER-4G

• Network: 4G GSM with fallback to 3G/2G

• Audio Output: Built-in loudspeaker for live or pre-recorded announcements

• SIM Card: Compatible with ControlFreq multi-network IoT SIMs

• User Access: Supports multiple authorised users for remote broadcast

• Control Input: Remote activation via SMS, phone call, or digital trigger

• Power Supply: 12V DC (external adapter required)

• Connectivity: Mobile interface via GSM/4G LTE

• Audio Transmission: High-clarity digital voice output

• Inputs: Configurable trigger inputs for broadcast activation

• Outputs: Integrated loudspeaker

• Enclosure: Weather-resistant casing (indoor/outdoor rated)

• Mounting: Wall-mounted or standalone

• Operating Temperature: Suitable for varied environmental conditions

The SPEAKER-4G integrates with WebAlarm™, ControlFreq’s cloud-based monitoring and communication platform.

Through WebAlarm™, administrators can remotely manage devices, view activity logs, and issue instant audio challenges from anywhere.

Cloud features include:

• Remote broadcast activation via web or app

• User access management and activity monitoring

• SMS and email alerts for triggered events

• Multi-site control through a single dashboard

• Secure connectivity with IoT SIM integration

• Security and perimeter monitoring

• Emergency public address and safety alerts

• Car park and access control systems

• Industrial or construction site communication

• Remote area management and monitoring

• Integration with CCTV or alarm systems for audio challenge

Speaker-4G Datasheet (PDF)

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