Short answer: the Zealot PT21 for better sound quality, the Onn Large Party gen 2 for the lower price. The Zealot PT21 ranks #12 of 46 party speakers at $216.73. The Onn Large Party gen 2 ranks #16 at $129, $87.73 cheaper.
What the Zealot PT21 gets right: Dual 166mm woofers deliver quite deep bass for the price, plus a bundled wireless microphone with echo effect built in for karaoke. The catch: app-based EQ customization doesn’t appear to be fully supported yet.
On the Onn Large Party gen 2 side: An insane value with a handle and wheels for easy moving, at nearly $90 less. The tradeoff: not quite as loud, and still not as deep in the bass as the PT21.
Buy the Zealot PT21 if sound quality matters more than the price. Buy the Onn Large Party gen 2 if the price matters more than sound quality.
Specifications Side By Side
| Zealot PT21 | Onn Large Party gen 2 | |
|---|---|---|
| Price | $216.73 | $129 |
| Ranked | #12 of 46 in Party Size Portable Bluetooth Speakers | #16 of 46 in Party Size Portable Bluetooth Speakers |
| App | No | No |
| Aux Input | Yes | Yes |
| Battery Capacity | 48000mAh (12x4000mAh) | - |
| Bluetooth Version | 5.3 | - |
| Dimensions | 21.1" x 8.6" x 11.9" (535 x 219 x 303 mm) | - |
| Drivers | 2x 166mm woofers + tweeters + midrange drivers | Dual 8" (203mm) woofers + dual tweeters |
| EQ | Yes (Bass, Voice, Standard modes) | No |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) | - |
| IP Rating | IPX5 | IPX4 |
| Microphone Input | Yes (Karaoke mode with echo effect) | Yes (Karaoke mode with echo effect) |
| MicroSD Playback | Yes | - |
| Output Power | 200W | - |
| Party Mode | Yes (PartyAdd up to 100 speakers) | Yes (Party Sync Mode) |
| Power Bank | Yes | Yes |
| Power Input | Type-C | AC Power cord |
| Stereo | Yes | Partially |
| TWS | Yes | No |
| USB Playback | Yes | No |
| Weight | 20.7 lbs / 9.4 kg | 20.9 lbs / 9.5 kg |
| Battery Life | - | 12 hours (Manufacturer specified) |
| FM Tuner | - | Yes |
| Guitar Input | - | Yes |
| Bluetooth Codecs | - | SBC |
The Two Speakers In Full
Zealot PT21: $216.73 Aliexpress
Pros: Dual 166mm woofers and 200W output in a lighter, more compact body than the ZE41, with a bundled wireless microphone and echo effect built in for karaoke. Quite deep bass for the price, even deeper than the JBL Boombox 4 in direct comparisons.
Cons: 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.
| App | No |
|---|---|
| Aux Input | Yes |
| Battery Capacity | 48000mAh (12x4000mAh) |
| Bluetooth Version | 5.3 |
| Dimensions | 21.1" x 8.6" x 11.9" (535 x 219 x 303 mm) |
| Drivers | 2x 166mm woofers + tweeters + midrange drivers |
| EQ | Yes (Bass, Voice, Standard modes) |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX5 |
| MicroSD Playback | Yes |
| Microphone Input | Yes (Karaoke mode with echo effect) |
| Output Power | 200W |
| Party Mode | Yes (PartyAdd up to 100 speakers) |
| Power Bank | Yes |
| Power Input | Type-C |
| Stereo | Yes |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 20.7 lbs / 9.4 kg |
As an eBay Partner, I may be compensated if you make a purchase.
- Links
- Reviews, Comparisons and Sound Samples
- Jagist reviews: Zealot PT21 Vs Jbl Boombox 4!!! 😁😁😁
- Techder Audios: Zealot PT21 - Soundtest “BUDGET PARTYBOX WITH BASS ?”
- Jagist reviews: Zealot PT21 Vs Zealot Ze21!!! 🥰😍🥰
- Jagist reviews: Zealot PT21 Unboxing And Review!!! 😈😈😈
- Techder Audios: Zealot PT21 VS Yeahbox Sonic Boom Ultra “BASS VS QUALITY BASS!?”
- Jagist reviews: Zealot Ze41 Vs Zealot PT21!!! BATTLE OF THE BROTHERS!!! 😝😝😝
- Jagist reviews: Zealot PT21 Vs Yeahbox Sonic Boom Max3!!! 💥💥💥
- Jagist reviews: Zealot PT21 Vs Zealot S89!!! 😈😈😈
- Jagist reviews: Zealot PT21 Vs LG xboom Stage301!!! 🫣🫣🫣
- Jagist reviews: Zealot PT21 Slim Back Rattle Fix!!!😇😇😇
- Reddit Search for Zealot PT21 Review
- Head-to-Head Comparisons
Onn Large Party gen 2: $129 Walmart
Pros: An insane value speaker. Easy to move around because it has a handle and wheels. A huge improvement over the gen 1 with much deeper bass.
Cons: Not quite as loud as the old one. Not as deep bass as the top ranked.
| App | No |
|---|---|
| Aux Input | Yes |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Drivers | Dual 8" (203mm) woofers + dual tweeters |
| EQ | No |
| FM Tuner | Yes |
| Guitar Input | Yes |
| IP Rating | IPX4 |
| Microphone Input | Yes (Karaoke mode with echo effect) |
| Party Mode | Yes (Party Sync Mode) |
| Power Bank | Yes |
| Power Input | AC Power cord |
| Stereo | Partially |
| TWS | No |
| USB Playback | No |
| Weight | 20.9 lbs / 9.5 kg |
As an eBay Partner, I may be compensated if you make a purchase.
- Links
- Reviews, Comparisons and Sound Samples
- Jay’s Straight Up Reviews & More: ONN Large Party Speaker 2 🎶 (Gen 2.0) First Look and Light Demo
- Jay’s Straight Up Reviews & More: ONN Large Party Speaker Gen 2 vs JBL Partybox 110 ☀️ Outdoors Pole Mounted 🤯 Bass Boost On
- Jay’s Straight Up Reviews & More: ONN Large Party Speaker Gen 2 vs JBL Partybox Encore 🛻 Tailgater Special 🔋 Battery Powered
- Jay’s Straight Up Reviews & More: ONN Large Party Speaker Gen. 2 (Bass Boost On) vs JBL Partybox 110 (Bass Boost 1)🩻Battery Powered🔋
- Reddit Search for Onn Large Party gen 2 Review
- Head-to-Head Comparisons
- Onn Large Party gen 2 vs Klipsch Gig XXL
- Onn Large Party gen 2 vs Electro-Voice Everse 12
- Onn Large Party gen 2 vs JBL Partybox Club 120
- Onn Large Party gen 2 vs JBL Partybox 330
- Onn Large Party gen 2 vs Onn Large Party gen 1
- Onn Large Party gen 2 vs Earfun Uboom X
- Onn Large Party gen 2 vs Harman Kardon Onyx Studio 6
- Onn Large Party gen 2 vs Zealot ZE01
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Product prices and availability were last checked August 10, 2026 at 7:14 AM UTC 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.