Short answer: the Minirig Mini 2. It ranks #3 of 62 small speakers by sound quality, rated 4.4/5, at $100; the Marshall Willen II ranks #11, rated 4.0/5, and costs $129.99, so there is little reason to consider the other one.
The Minirig Mini 2 is the better-sounding, deeper-bass option. A tiny, very neutral speaker with much deeper bass than most its size, a long battery, and an optional add on subwoofer. Its bass reaches about 58Hz before falling 10dB, against 70Hz for the Marshall Willen II. It supports aptX Bluetooth, which the Marshall Willen II lacks. It keeps a wired aux input, which the Marshall Willen II lacks. Watch for: Calls itself splash resistant and has no official water rating.
The Marshall Willen II is the longer-running, tougher option. A tiny waterproof strap on speaker with balanced sound, a long battery, and app EQ that clips easily onto a bag. It is rated for 17 hours of battery against 12 for the Minirig Mini 2. It is rated IP67 against Splash resistant for the Minirig Mini 2. The catch: Not that deep of bass.
Buy the Minirig Mini 2. It is rated higher for sound quality than the Marshall Willen II and costs less, so it is the default pick unless a specific strength of the other one matters more to you.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
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Specifications Side By Side
| Minirig Mini 2 | Marshall Willen II | |
|---|---|---|
| Price | $100 | $129.99 |
| Ranked | #3 of 62 in Small Size Portable Bluetooth Speakers | #11 of 62 in Small Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Aux Input | Yes | No |
| Aux Latency | 0ms | - |
| Bass Extension (-10dB) | 58Hz | 70Hz |
| Battery Life | 12 hours (Manufacturer specified) | 17 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | aptX, AAC, SBC | SBC |
| EQ | Yes | Yes |
| IP Rating | Splash resistant | IP67 |
| Maximum SPL | 92dB (measured by Alan Ross Reviews) | - |
| Party Mode | No | No |
| Power Bank | No | No |
| Power Input | Proprietary USB cable | USB-C |
| Stereo | No | No |
| Omnidirectional | Pointing up | Pointing up |
| TWS | Yes (Bluetooth or cable) | No |
| Weight | 0.7 lbs (320 g) | 0.8 lbs (360 g) |
| Built-in Microphone | Yes | Yes |
| Dimensions | 3.3” x 2.1” (84 x 53 mm) | 3.9” x 1.7” x 3.9” (99 x 43 x 99 mm) |
| Frequency Response | 65Hz - 16kHz (Manufacturer specified) | 75Hz - 20kHz (Manufacturer specified) |
| Drivers | 52mm custom neodymium | 2” (51mm) full-range with dual passive radiators |
| Charging Time | 2.5-3.5 hours | 2.5 hours |
| Amplifier Power | 15W | 10W |
| Digital Aux Input | No | No |
| Bluetooth Version | 4.2 | 5.3 |
| Strap | - | Yes (built-in strap) |
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