This is the Blaupunkt DUBAI424 Heavy-Duty Receiver with Bluetooth, designed to work on 24-Volt electrical systems. 

Perfect for construction equipment, heavy duty trucks, buses, and other commercial vehicles.

Functional infotainment in a new dimension. Resilient, easy to use and uncompromising in terms of quality: characteristics that commercial vehicle drivers in particular expect from a radio.

The Blaupunkt Heavy Duty series meets these requirements – in the 24 volt segment. All modern USB media can be conveniently connected and played, and thanks to fewer and larger rubberized station buttons, operation is always intuitive.

The well thought-out concept extends down to the smallest detail: stored radio stations are retained even if the vehicle battery is disconnected during maintenance work.

General:

• Ultra short body (only 8 cm)
• Wide angle display
• Multicolour (7 colours)
• DIM function
• Permanent memory
• Microphone Input (6.3 mm)
• IR Remote Sensor
• SWC Input (analog)
• 24 Volt
• Deactivatable ACC detection
• Charging of mobile devices

Radio:

• High-End CODEM IV World tuner
• AM / FM tuner
• Radiotext
• Traffic function
• Travelstore
• Preset and Band Introscan

Media Player:

• 2x USB Input
• MP2, MP3, WMA, FLAC, M4A (AAC), APE, WAV Support
• AUX Input (3.5mm)
• Intro scan
• Fast FF/REW with Sound
• Browsing function
• Multiple Folder Support
• Apple iPod Support

Bluetooth:

• Int. and ext. microphone support
• Audio streaming with track info
• Access to voice assistant (e.g. Siri, Google, Alexa)
• Wake-up on call
• Phonebook access
• Favourite memory

Sound:

• Sound Presets
• Loudness
• Semiparametric Equalizer (3 Bands)
• 4-Channel Pre-Amp Output + 2 Sub-Out
• 4 x 50 Watt