Short answer: the Zealot PT21. It ranks #12 of 40 party speakers by sound quality, rated 4.1/5, at $225.86; the Sony SRS-XV500 ranks #15, rated 4.0/5, and costs $310, so there is not much of a tradeoff to weigh.
The case for the Zealot PT21: 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. 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 Sony SRS-XV500 does well: RTINGS measured a slightly warm sound with plenty of bass punch, and found it gets very loud for outdoor parties. Watch for: RTINGS measured poor directivity, so the sound changes noticeably as you move off to the sides.
Buy the Zealot PT21. It is rated higher for sound quality than the Sony SRS-XV500 and costs less, so it is the default pick unless a specific strength of the other one matters more to you.
There is a real battery-life gap here: the Zealot PT21 is rated for 60 hours, the Sony SRS-XV500 only 25 hours.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Zealot PT21 | Sony SRS-XV500 | |
|---|---|---|
| Price | $216.73 | $310.00 |
| Ranked | #12 of 40 in Party Size Portable Bluetooth Speakers | #15 of 40 in Party Size Portable Bluetooth Speakers |
| App | No | - |
| Aux Input | Yes | Yes |
| Battery Capacity | 48000mAh (12x4000mAh) | - |
| Bluetooth Version | 5.3 | 5.2 |
| Dimensions | 21.1” x 8.6” x 11.9” (535 x 219 x 303 mm) | 22.2”H x 10.6”W x 11.6”D (564 x 269 x 294 mm) |
| Drivers | 2x 166mm woofers + tweeters + midrange drivers | 2x 140mm woofers + 2x 60mm tweeters |
| EQ | Yes (Bass, Voice, Standard modes) | - |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) | - |
| IP Rating | IPX5 | IPX4 |
| Microphone Input | Yes (Karaoke mode with echo effect) | Yes (two 6.3mm inputs) |
| MicroSD Playback | Yes | - |
| Amplifier Power | 200W | - |
| Party Mode | Yes (PartyAdd up to 100 speakers) | - |
| Power Bank | Yes (USB-A) | - |
| Power Input | Type-C | - |
| Stereo | Yes | - |
| Omnidirectional | No | - |
| TWS | Yes | - |
| USB Playback | Yes | - |
| Weight | 20.7 lbs (9.4 kg) | 24.7 lbs (11.2 kg) |
| Digital Aux Input | No | - |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) | - |
| Lights | Yes | Yes |
| Battery Life | 60 hours (Manufacturer specified) | 25 hours (Manufacturer specified) |
| Guitar Input | - | Yes |
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 26, 2026 at 11:14 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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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) |
| Battery Life | 60 hours (Manufacturer specified) |
| 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
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- Head-to-Head Comparisons
Sony SRS-XV500: $310.00 Amazon eBay
Older model: the Sony SRS-XP500 (rated 4/5).
Pros: RTINGS measured a slightly warm sound with plenty of bass punch, and found it gets very loud for outdoor parties. Two 140mm woofers and two 60mm tweeters in a bass reflex cabinet, with a claimed 25 hours of battery life and a 10 minute quick charge for about 2.5 hours of play. Two 6.3mm inputs switch between microphone and guitar, with karaoke controls for key, echo and per-input volume, plus a 3.5mm aux input. IPX4 splash resistance and built-in lighting.
Cons: RTINGS measured poor directivity, so the sound changes noticeably as you move off to the sides. Bass compresses and pumps as you approach maximum volume. At 11.2 kg it is heavy to carry, and IPX4 only covers splashes.
Full Sony SRS-XV500 review and specifications →
| Aux Input | Yes |
|---|---|
| Battery Life | 25 hours (Manufacturer specified) |
| Bluetooth Version | 5.2 |
| Dimensions | 22.2”H x 10.6”W x 11.6”D (564 x 269 x 294 mm) |
| Drivers | 2x 140mm woofers + 2x 60mm tweeters |
| Guitar Input | Yes |
| IP Rating | IPX4 |
| Lights | Yes |
| Microphone Input | Yes (two 6.3mm inputs) |
| Weight | 24.7 lbs (11.2 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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- Sony SRS-XV500 vs W-King T12
- Sony SRS-XV500 vs Onn XL Wireless Party Speaker
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- Sony SRS-XV500 vs JBL Partybox 130
- Sony SRS-XV500 vs JBL Partybox Club 120
- Sony SRS-XV500 vs Sony ULT Tower 5
- See all 11 comparisons