ThunderPower 120 – 15 Watts – Up to 800 Yard Range

Original price was: $69.69.Current price is: $55.75.

The most affordable QUALITY megaphone you can buy.

Compact, lightweight, 15 Watts of power and quality you can count on. Includes a siren and whistle sounds, a nylon carrying strap, and sturdy industrial-strength plastic chassis.
Uses 8 AA batteries.

It is perfect for indoor and smaller outdoor activities and events like:

  • Fairs & Farmers’ Markets
  • Parades
  • Coaching
  • Cheer leading
  • School pickup and drop-off lots
  • Theater & set productions
  • Campus Crowd Control
UPC: 670541871188
Availability: 318 in stock SKU: THUN120

8 Pack of "AA" Alkaline Batteries

Panasonic High Power "AA" Cell Alkaline Batteries


15 Watts of power, up to 800 yards range.

Volume: Voice: 100 dB / Siren: 112 dB.
How loud is that? See the comparison chart

Megaphone Details:

The ThunderPower 120 megaphone is made from the highest quality materials, including a heavy-duty industrial plastic bell and handle, anodized aluminum mic screen, and reinforced nylon webbing wrist strap, making it far superior to the cheap toy-like knock-offs you see flooding the marketplaces. Battery operated with both whistle and siren sounds, this is your best choice when you need something inexpensive, light weight but still QUALITY MADE AND LOUD!

Chart displaying how loud the ThunderPower 120 in decibels and relative terms
The THUN-120 was accurately measured for loudness. The voice amplification potential can hit 100 decibels and the siren/whistle function measured 112 decibels.

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Woman using a THUN-120 megaphone
The THUN-120 is perfect for musical festivals, coaches, teachers, parades, and campus crowd control.

All of our megaphones are tested and certified in the USA so the quality is incredible and we back them by a full 1 year, expedited in-house express warranty so you have complete peace of mind. You will be extremely impressed with your ThunderPower Megaphone

CLEAR SOUND & LONG RANGE: Be heard up to 800 yards away with this well constructed megaphone. Amplify your voice with clarity. This bullhorn speaker produces powerful 15-watt sound

ERGONOMIC GRIP & LIGHT-WEIGHT: This portable megaphone with siren and whistle is designed with a reinforced plastic pistol grip with soft-touch sound trigger. It is also amazingly lightweight and comes with reinforced nylon web wrist lanyard for easy carrying. It works with just 8 AA batteries for long lasting use.

FLEXIBLE, MULTI-FUNCTION USES: Perfect for athletic coaches, school teachers, emergency responders, parade organizers, protest organizers, and preachers.

SIREN ALARM & WHISTLE MODE: Amplifies an emergency tone AND a whistle tone that can be activated by a simple toggle switch. Volume control can also be adjusted with a perfectly located thumb operated volume control knob. Get everyone’s attention fast. Be heard loud and clear in any indoor or outdoor venue.

Image highlighting the physical features of the ThunderPower 120 megaphone
The THUN-120 is made from the highest quality materials including heavy-duty industrial plastic, anodized aluminum mic screen, and reinforced nylon webbing wrist strap.
Closeup picture highlighting the features of the ThunderPower 120 megaphone
The THUN-120 has both a whistle AND siren tone that are activated by a simple toggle switch. Volume can be adjusted with a thumb operated volume control knob.

COMPACT DESIGN: This compact & portable PA speaker features a 8” diameter bell and 12” chassis that is constructed from industrial grade plastic that delivers a 90-degree sound projection angle for direct sound aiming. It weights just 2.5 lbs. with batteries, and can deliver up to 8 hours of continuous charging power.

  • 15 Watts of Power
  • Up to 800 yards range
  • Pistol-trigger switch
  • Hand strap
  • Volume Control
  • Uses 8 AA batteries.
  • Dimensions: 12″ length x 8″ diameter bell
  • Weight: 2.05 lb (no batteries) / 2.45 lb (with batteries)
  • 1 year warranty
  • MSRP: $60.00

Need something a little louder but still light weight? Try our ThunderPower 250!

Additional information

Weight2.5 lbs
Dimensions12 × 8 × 9 in

Indoor and Small Outdoor Events

Auxiliary Input Jack



8 AA Batteries

Palm Mic



15 Watts

Cigarette Power Adapter


Presentation Mic




Siren Max Volume

112 dB


Hand Strap

Voice Max Volume

100 dB


1 Year




Up to 800 yards