Short answer: the Onn Portable FM Boombox. It ranks #26 of 115 large speakers by sound quality, rated 4.2/5, at $74.83; the Marshall Middleton ranks #34, rated 4.0/5, and costs $279.99, which makes this an easy call rather than a real tradeoff.
The case for the Marshall Middleton: A waterproof stereo speaker with very deep bass for its size, a long battery, a power bank and a detachable strap. The tradeoff: 5db dip at 1.7kHz and 6.3kHz.
What the Onn Portable FM Boombox does well: An excellent value waterproof boombox that floats, with reasonably deep bass, FM radio, lights and a long battery. Watch for: Reasonable frequency response, but not quite as smooth as some of the top-ranked speakers in this size.
Buy the Onn Portable FM Boombox. It is rated higher for sound quality than the Marshall Middleton and costs less, which makes it the one to get unless you need something the other one does better.
Want more options? Browse the full Portable Bluetooth rankings.
A waterproof stereo speaker with very deep bass for its size, a long battery, a power bank and a detachable strap.
An excellent value waterproof boombox that floats, with reasonably deep bass, FM radio, lights and a long battery.
Prices on this page were last checked October 31, 2026 at 7:11 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
As an eBay Partner, we may be compensated if you make a purchase.
Specifications Side By Side
| Marshall Middleton | Onn Portable FM Boombox | |
|---|---|---|
| Price | $279.99 | $74.83 |
| Ranked | #34 of 115 in Large Size Portable Bluetooth Speakers | #26 of 115 in Large Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 39Hz | - |
| Battery Life | 20 hours (Manufacturer specified) | 16 hours (Manufacturer specified) |
| Maximum SPL | 99dB (measured by Alan Ross Reviews) | - |
| Party Mode | Yes (Marshall Stack) | Yes (Party Sync, pairs with 1 other onn. speaker) |
| Power Bank | Yes (USB-C) | Yes (USB-A) |
| Weight | 4 lbs (1.8 kg) | 4.9 lbs (2.22 kg) |
| App | No | No |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC (inferred; additional codecs unverified) |
| Built-in Microphone | Yes | Yes |
| EQ | No | No |
| IP Rating | IPX7 | IPX7 |
| Power Input | USB-C | USB-C |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Bluetooth Version | 5.1 | - |
| Dimensions | 9.1” x 3.7” x 4.3” (230 x 95 x 109 mm) | 13.8” x 5.9” x 7.7” (350 x 149 x 195 mm) |
| Drivers | 2x 75mm woofers, 2x 0.625” tweeters + 2x passive radiators | 2 speakers |
| Frequency Response | 50Hz - 20kHz (Manufacturer specified) | - |
| Amplifier Power | 50W | 25W RMS (100W peak) |
| Digital Aux Input | No | No |
| Strap | Yes (detachable strap) | - |
| FM Tuner | - | Yes (10 presets) |
| Removable Battery | - | No |
| Lights | - | Yes |
Related Speaker Comparisons
How Onn Portable FM Boombox compares with other leading options: