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HamiltonBuhl Amp-Up Mini Personal UHF Voice Amplifier with Wireless Headset

BH #HAPA25E • MFR #PA-25E
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HamiltonBuhl Amp-Up Mini Personal UHF Voice Amplifier with Wireless Headset
Key Features
  • For Classrooms, Conferences & Lectures
  • Crisp, Clear Sound
  • Ergonomic and Comfortable Design
  • Durable, Wear-Resistant ABS Housing
Designed to make it easier to be heard, even with a face mask, the Amp-Up Mini from HamiltonBuhl is a wireless UHF amplifier with a microphone headset that is ideal for classrooms, conference halls, lecture halls, sports gymnasiums, and any other application where it's critical to be heard clearly without straining your voice. With a powerful output of 10W and a high-capacity lithium-ion battery that supports up to seven hours of amplification and five hours of microphone operation, the Amp-Up Mini delivers crisp, clear sound for long sessions.
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HamiltonBuhl Amp-Up Mini Overview

Designed to make it easier to be heard, even with a face mask, the Amp-Up Mini from HamiltonBuhl is a wireless UHF amplifier with a microphone headset that is ideal for classrooms, conference halls, lecture halls, sports gymnasiums, and any other application where it's critical to be heard clearly without straining your voice. With a powerful output of 10W and a high-capacity lithium-ion battery that supports up to seven hours of amplification and five hours of microphone operation, the Amp-Up Mini delivers crisp, clear sound for long sessions.

The wireless microphone headset has a maximum distance of 150', sports a stylish, ergonomic design for comfort, and is constructed from durable, wear-resistant ABS plastic. Manual frequency selection allows you to find the optimal frequency setting to avoid pesky interference. The included belt hook makes Amp-Up Mini easy to wear, and the detachable strap can allow you to hang the unit from a hook to keep it handy. This unit includes a micro USB charging cable.

High-Powered, High-Fidelity Sound
The amplifier boasts a potent 5W speaker driver with a maximum output of 10W for crisp, clear sound projection. This makes the Amp-Up Mini perfect for any small gatherings where intelligibility is paramount.
External Mic Support
The unit includes a 3.5mm input jack for an external wired microphone (such as the PA-25M or PA-25LM), allowing you to utilize a microphone with different pickup characteristics or an alternative design, such as a lapel mic.
Note:
PA-25M and PA-25LM microphone are sold separately.
UPC: 681181627103

HamiltonBuhl Amp-Up Mini Specs

Output Power
Max: 10 W
RMS: 5 W
Driver
5 W
Voltage
5 VDC at 0.5 A
Battery
Lithium Battery: 3.7 V at 1500 mAh
Approximate Runtime: 4 to 7 Hours
Charge Time: 3 to 4 Hours
Wireless Range
Up to 150'
Frequency Response
200 Hz to 20 kHz
Polar Pattern
Cardioid
Sensitivity
-35 dB (±2 dB)
Battery
Lithium-Ion Polymer
Working Voltage: 3.5 to 4.2 VDC at 450 mA
Approximate Operating Time: 4 to 5 Hours
Charge Time: 2 to 3 Hours
Dimensions
4.2 x 3.25 x 1.5" / 10.6 x 8.25 x 3.8 cm
Weight
0.63 lb / 0.28 kg
Packaging Info
Package Weight
0.85 lb
Box Dimensions (LxWxH)
8.9 x 7 x 2.1"

HamiltonBuhl Amp-Up Mini Reviews

Very pleased with it

By Ronald
Rated 5 out of 5
Date: 2026-04-28

I bought the Amp-Up Mini to use when speaking in a roomful of seniors, several who are hearing impaired. It worked perfectly. While I could have worn the unit which is a nice option, I just lay it on the table before me. I also purchased the HamiltonBuhl wired lapel mic to use versus the wireless headset as I prefer not having it on my head. I may give it a whirl in the days ahead. Very good volume for my room which seats about twenty. Highly recommend.

Its fine for its size.

By Kyle
Rated 3 out of 5
Date: 2025-08-06

This device works exactly as advertised. I really like the compact nature and ease of use. The only thing its missing is real amplification power. If you are in a room with people, it might help get your voice out to the whole room without yelling. But, in open air or a crowd, its no better than yelling. It just doesn't have the power to push out enough sound.

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