Adastra 25W Vehicle Megaphone with USB/SD/BT

The Adastra 25W Vehicle Megaphone is a powerful active horn speaker designed for clear public address and alert systems on the move. With a robust ABS moulded body, it includes an adjustable metal bracket and a removable suction cup base for quick attachment to a vehicle roof or permanent installation. Power is supplied via a 12V cigar lighter lead, delivering up to 25W of audio output for announcements and signals.

The detachable wired handset features a push-to-talk microphone and houses all controls, including a built-in USB/SD media player for audio playback, a 3.5mm auxiliary input for external sources, and an integral speech looper that records messages up to 120 seconds for repeated broadcast. Push-button controls activate siren and whistle alerts, while an inbuilt Bluetooth receiver allows wireless streaming from mobile devices or use as a remote microphone via compatible apps.

Key Features

• Powerful Output: 25W internal amplifier for clear audio over distances up to 1km.
• Multiple Audio Sources: Microphone, USB/SD player, Aux-in, and Bluetooth connectivity.
• Recordable Messages: Built-in 120-second speech looper for repeated announcements.
• Durable Construction: ABS moulded body with IP66 rating for weather resistance.
• Flexible Mounting: Adjustable bracket and removable suction cup for roof or fixed installation.
• Emergency Signals: Siren and whistle alerts activated via push buttons.

Supplied with a 5m power lead and 4m microphone lead, the Adastra megaphone is ideal for mobile or permanent public address systems, live events, and signalling.