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Communication
 VoRF communication technology
Proprietary wireless audio streaming protocol using time division duplex.

Key features:

• Two-way communication.
• Advanced sabotage protection.
• Full duplex audio communication.
• Radio communication range
• up to 1,700 m
• Between the device and a hub in an open space.
• Frequency band : 863.0–865.0 MHz

 Jeweller communication technology
Proprietary wireless communication technology to transmit commands, alarms, and events.

Key features:

• Two-way communication.
• Advanced sabotage protection.
• Block encryption featuring a dynamic key.
• Instant notifications.
• Remote control and configuration in Ajax apps.
• Frequency bands : 866.0–866.5 MHz / 868.0–868.6 MHz / 868.7–869.2 MHz
• Maximum effective radiated power (ERP) : up to 25 mW
• Automatic power control to reduce power consumption and radio interference.
• Radio signal modulation : GFSK
• Radio communication range : up to 1,700 m Between the device and a hub in an open space.

AI-powered sound optimization
It provides:

• Clear voice transmission.
• Suppression of extraneous noise.
• Improved audibility even at long distances.
• Option to set up the AI feature in Ajax apps.
• Voice audibility : up to 10 m

Auto adjustment of the microphone sensitivity.

• Output speaker power : 3 W
• Speaker volume : up to 103 dB / 83 dB at a distance of 1 m.
• Frequency range : from 200 Hz to 16 kHz
• Audio codec : Opus

Remote firmware update

• When a new firmware is available, an admin or PRO with the rights to configure the system can run the update in Ajax apps.

The hub must be connected to Ajax Cloud via Ethernet or Wi-Fi.

Sabotage protection

• Tamper alarm
• Notifications on attempts to detach the device from the surface.
• Microphone cut-off detection
• Notifications of attempts to damage an in-built microphone.

Power supply

• Battery : 4 × CR123

Pre-installed.

Calculated battery life : up to 3 years

In a standby mode. : up to 12 hours

• Optional external power supply : 12 V⎓, 1 A

The power supply cable length should not exceed 10 m when using the 2 × 0.35 copper-conductor cable. When the external power supply is connected, the batteries operate as a backup power source.

• Dimensions : 112 × 112 × 42 mm
• Weight : 270 g
• Operating temperature range : from 0 °C to +40 °C
• Operating humidity : up to 75%
• Protection class : IP50