HornBlasters 100W Megaphone MP-100W — Bluetooth & USB, Rechargeable with Sirens, 1,500 ft Range

HornBlasters MP-100W is a 100-watt rechargeable megaphone with Bluetooth, USB audio, built-in police and air-raid sirens, and up to 350 seconds of record/loop playback for clear commands up to 1,500 feet.

Designed for events, off-road safety, crowd control, and loud public announcements, the MP-100W combines robust output with flexible inputs and portable power. At roughly 3 pounds and with a shoulder strap included, it balances loud performance with everyday transportability. Use Bluetooth streaming or USB playback, trigger sirens instantly, or record customized messages to loop during long sessions.

How loud and far will the MP-100W carry my voice?

The MP-100W pushes 100 watts (50W RMS) of audio and is engineered to project clear sound up to about 1,500 feet in open conditions. It emphasizes presence and intelligibility so instructions can be heard across noisy environments.

• Rated power: 100W peak, 50W RMS for consistent output
• Effective distance: approximately 1,500 feet in open air
• 9-inch horn and directional design for focused projection
• Lightweight build (3 lbs) keeps pointing and aiming easy

Which audio sources can I use and how do I switch between them?

Audio inputs include Bluetooth wireless streaming and a USB 2.0 port for direct playback. The MP-100W is built for quick switching between sources so you can go from a live mic to a queued audio file without extra adapters.

• Bluetooth pairing for phone or tablet streaming
• USB 2.0 port for audio files or direct playback from storage
• On-device selector to toggle inputs instantly
• Record & loop feature captures up to 350 seconds for repeated announcements

What safety and siren features are included?

This megaphone includes two built-in sirens — a police-style siren and an air-raid tone — that are ready to use at the press of a button. These tones are intended for event control, off-road signaling, and other non-government uses; do not impersonate authorities.

• Two instant-access sirens for attention-grabbing alerts
• Siren buttons located for rapid activation during events
• Record & loop lets you overlay custom instructions with siren use
• Intended for off-road and event use only, not for impersonation

How long does the battery last and what are backup power options?

The included rechargeable lithium 12V battery provides roughly 6–8 hours of typical operation on a full charge. For extended remote usage, the unit also accepts eight C-size batteries as a backup power source (sold separately).

• Rechargeable DC 12V lithium battery included with built-in charger
• 6–8 hours runtime under normal use conditions
• Backup: runs on 8 C-size batteries (not included) for field flexibility
• Compact size and shoulder strap make battery swaps and transport simple

Who is this for? The HornBlasters MP-100W suits organizers, off-road groups, event staff, safety teams, and anyone who needs a portable, high-output public address tool with modern connectivity. If you require long-range verbal commands, instant siren alerts, or pre-recorded message loops with a lightweight, rechargeable package, this megaphone delivers practical features without extra complexity.