Short answer: the Zealot PT21 if sound quality matters most, the Sharp PS-929 if price matters most. The Zealot PT21 ranks #12 of 39 party speakers at $225.86. The Sharp PS-929 ranks #32 at $150, $75.86 cheaper.
What the Zealot PT21 offers: 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. 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.
What the Sharp PS-929 offers: 180W power with TWS capability to pair two units. 13-hour battery life. Rich, club-style bass, press Super Bass button for increased low-frequency power. LED flash lighting. Bluetooth wireless, auxiliary input, mic/guitar inputs, two USB ports. Wired microphone included. Vertical or horizontal positioning with built-in transport handle. Watch for: Not very deep bass
Buy the Zealot PT21 if sound quality matters more than the price. Buy the Sharp PS-929 if the price matters more than sound quality.
The Sharp PS-929 is not a sound-quality pick. It sits near the bottom of the 39 party speakers; there are better options higher up.
If water resistance matters to you, the Zealot PT21 at IPX5 (water jets) holds up far better than the Sharp PS-929 at no water resistance.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| Zealot PT21 | Sharp PS-929 | |
|---|---|---|
| Price | $216.73 | $150 |
| Ranked | #12 of 39 in Party Size Portable Bluetooth Speakers | #32 of 39 in Party Size Portable Bluetooth Speakers |
| App | No | No |
| Aux Input | Yes | - |
| Battery Capacity | 48000mAh (12x4000mAh) | - |
| Bluetooth Version | 5.3 | 5.0 |
| Dimensions | 21.1" x 8.6" x 11.9" (535 x 219 x 303 mm) | 10.2" x 11" x 22" (260 x 280 x 560 mm) |
| Drivers | 2x 166mm woofers + tweeters + midrange drivers | 2x 6.5" woofers, 2x 2" tweeters |
| EQ | Yes (Bass, Voice, Standard modes) | No |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) | - |
| IP Rating | IPX5 | None |
| Microphone Input | Yes (Karaoke mode with echo effect) | - |
| MicroSD Playback | Yes | - |
| Amplifier Power | 200W | 50W RMS |
| Party Mode | Yes (PartyAdd up to 100 speakers) | No |
| Power Bank | Yes (USB-A) | No |
| Power Input | Type-C | AC Power cord |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | No |
| USB Playback | Yes | No |
| Weight | 20.7 lbs (9.4 kg) | 19 lbs (8.6 kg) |
| Digital Aux Input | No | No |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) | SBC |
| Lights | Yes | Yes |
| Bass Extension (-10dB) | - | ~60Hz |
| Battery Life | - | 13 hours (Manufacturer specified) |
Related Speaker Comparisons
How Zealot PT21 compares with other leading options:
- Sony ULT Tower 7 vs Zealot PT21
- Zealot PT21 vs JBL Partybox 330
- JBL Partybox Stage 320 vs Zealot PT21
- JBL Partybox 310 vs Zealot PT21
- Sony ULT Tower 5 vs Zealot PT21
Prices on this page were last checked September 16, 2026 at 12:41 AM 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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The Two Speakers In Full
Zealot PT21: $216.73 Aliexpress eBay
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.
Full Zealot PT21 review and specifications →
| Amplifier Power | 200W |
|---|---|
| App | No |
| Aux Input | Yes |
| Battery Capacity | 48000mAh (12x4000mAh) |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) |
| Bluetooth Version | 5.3 |
| Digital Aux Input | No |
| 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 |
| Lights | Yes |
| MicroSD Playback | Yes |
| Microphone Input | Yes (Karaoke mode with echo effect) |
| Omnidirectional | No |
| Party Mode | Yes (PartyAdd up to 100 speakers) |
| Power Bank | Yes (USB-A) |
| Power Input | Type-C |
| Stereo | Yes |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 20.7 lbs (9.4 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Jagist reviews: Zealot PT21 Vs Jbl Boombox 4!!! 😁😁😁 More from Jagistreviews →
- Techder Audios: Zealot PT21 - Soundtest "BUDGET PARTYBOX WITH BASS ?" More from techderaudios →
- 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!!!😇😇😇
- Head-to-Head Comparisons
Sharp PS-929: $150 Sharp eBay
Pros: 180W power with TWS capability to pair two units. 13-hour battery life. Rich, club-style bass, press Super Bass button for increased low-frequency power. LED flash lighting. Bluetooth wireless, auxiliary input, mic/guitar inputs, two USB ports. Wired microphone included. Vertical or horizontal positioning with built-in transport handle. Measured bass extension of ~60Hz (-10dB).
Cons: Not very deep bass
Full Sharp PS-929 review and specifications →
| Amplifier Power | 50W RMS |
|---|---|
| App | No |
| Bass Extension (-10dB) | ~60Hz |
| Battery Life | 13 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.0 |
| Digital Aux Input | No |
| Dimensions | 10.2" x 11" x 22" (260 x 280 x 560 mm) |
| Drivers | 2x 6.5" woofers, 2x 2" tweeters |
| EQ | No |
| IP Rating | None |
| Lights | Yes |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | No |
| Power Input | AC Power cord |
| Stereo | Yes |
| TWS | No |
| USB Playback | No |
| Weight | 19 lbs (8.6 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons