Short answer: the Zealot PT21. It ranks #12 of 51 party speakers by sound quality, rated 4.1/5, at $225.86; the Soundboks Mix ranks #34, rated 3.2/5, and costs $799, so there is little reason to consider the other one.
What the Soundboks Mix does well: A rugged, weatherproof party speaker with a swappable battery that runs all day at mid volume and fast USB-C charging. The catch: Doesn’t have as deep of bass as higher-ranked speakers, and can sound somewhat bright in the treble.
The Zealot PT21 is the better-sounding, longer-running option. A lighter party speaker with surprisingly deep bass for the money, a long battery, and a wireless mic for karaoke. It is rated for 60 hours of battery against 40 for the Soundboks Mix. It has an adjustable EQ, which the Soundboks Mix lacks. It plays in stereo from a single unit, unlike the Soundboks Mix. Watch for: Unlike some other Zealot models, app-based EQ customization doesn’t appear to be fully supported yet, and IPX5 means it can handle splashes but not submersion.
Buy the Zealot PT21. It is rated higher for sound quality than the Soundboks Mix and costs less, so it is the default pick unless a specific strength of the other one matters more to you.
Looking for alternatives? See the complete Portable Bluetooth rankings.
A rugged, weatherproof party speaker with a swappable battery that runs all day at mid volume and fast USB-C charging.
A lighter party speaker with surprisingly deep bass for the money, a long battery, and a wireless mic for karaoke.
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.
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Specifications Side By Side
| Soundboks Mix | Zealot PT21 | |
|---|---|---|
| Price | $799 | $225.86 |
| Ranked | #34 of 51 in Party Size Portable Bluetooth Speakers | #12 of 51 in Party Size Portable Bluetooth Speakers |
| App | No | No |
| Aux Input | Yes | Yes |
| Battery Life | 40 hours (Manufacturer specified) | 60 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 4.2 | 5.3 |
| Dimensions | 19.1” x 13.5” x 10.9” (484 x 342 x 276 mm) | 21.1” x 8.6” x 11.9” (535 x 219 x 303 mm) |
| Drivers | 10” woofer, 1.2” tweeter | 2x 166mm woofers + tweeters + midrange drivers |
| EQ | No | Yes (Bass, Voice, Standard modes) |
| Frequency Response | 40Hz - 20kHz (Manufacturer specified) | 20Hz - 20kHz (Manufacturer specified) |
| IP Rating | IP65 | IPX5 |
| Maximum SPL | 121dB (Manufacturer specified) | - |
| Party Mode | Yes (TeamUp, up to 5 speakers) | Yes (PartyAdd up to 100 speakers) |
| Power Bank | No | Yes (USB-A) |
| Power Input | USB-C | Type-C |
| Removable Battery | Yes | - |
| Stereo | No | Yes |
| Omnidirectional | No | No |
| TWS | No | Yes |
| USB Playback | No | Yes |
| Weight | 21.4 lbs (9.7 kg) | 20.7 lbs (9.4 kg) |
| Amplifier Power | 72W | 200W |
| Digital Aux Input | No | No |
| Bluetooth Codecs | SBC (additional codecs unverified) | SBC (inferred; additional codecs unverified) |
| Battery Capacity | - | 48000mAh (12x4000mAh) |
| Microphone Input | - | Yes (Karaoke mode with echo effect) |
| MicroSD Playback | - | Yes |
| Lights | - | Yes |
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