Short answer: the JBL Partybox 330, if you are buying new. The JBL Partybox 310 ranks higher than the W-King T9 Pro (#4 vs #32 of 46 party speakers) but is discontinued; its replacement, the JBL Partybox 330, is rated 4.6/5 at $629.95 and is still sold new.
The JBL Partybox 310 is the better-sounding, longer-running option. Absolute deepest bass of any battery powered speaker, most balanced sound in the class, handle and wheels are convenient. It is rated for 18 hours of battery against 12 for the W-King T9 Pro. It is rated IPX4, while the W-King T9 Pro has no water resistance. It has an adjustable EQ, which the W-King T9 Pro lacks.
The W-King T9 Pro is the lighter choice. A feature-rich rolling party speaker with dual 6.5-inch woofers, removable battery, TWS pairing, bass presets and music-synced lighting. At 20 lbs (9.05 kg) it weighs much less than the JBL Partybox 310 at 37.5 lbs (17 kg). The catch: Reviewer comparisons describe the tuning as warm and gritty rather than clean or detailed.
Buy the JBL Partybox 330, the replacement for the discontinued JBL Partybox 310; it is rated higher for sound quality than the W-King T9 Pro.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| JBL Partybox 310 | W-King T9 Pro | |
|---|---|---|
| Price | $449.95 Discontinued | $171.49 |
| Ranked | #4 of 46 in Party Size Portable Bluetooth Speakers | #32 of 46 in Party Size Portable Bluetooth Speakers |
| App | Yes | No |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 32Hz | - |
| Battery Life | 18 hours (Manufacturer specified) | 12 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Charging Time | 3.5 hours | 4 hours |
| EQ | Yes (3 band) | No |
| Guitar Input | Yes | - |
| IP Rating | IPX4 | None |
| Microphone Input | Yes (Karaoke mode with echo effect) | - |
| Party Mode | No | No |
| Power Bank | Yes (USB-A, 5V/2.1A) | No |
| Power Input | AC Power cord | USB-C |
| Stereo | Partially | Yes |
| Omnidirectional | No | No |
| TWS | Yes | No |
| USB Playback | Yes | Yes |
| Weight | 37.5 lbs (17 kg) | 20 lbs (9.05 kg) |
| Amplifier Power | 240W | 250W (peak) |
| Drivers | 2x 6.5” (165mm) woofers + 2x 2.5” (65mm) tweeters | 2x 6.5” woofers, 2x 2.5” tweeters |
| Digital Aux Input | No | No |
| Lights | Yes | Yes |
| Wheels | Yes | Yes |
| Dimensions | 27.1”H x 12.8”W x 14.5”D (687.7 x 325.6 x 367.8 mm) | 10.8” x 10.1” x 21.1” (274 x 255.7 x 535.5 mm) |
| Bluetooth Version | 5.1 | 5.3 |
| Strap | No | - |
| Frequency Response | - | 50Hz - 20kHz (Manufacturer specified) |
Related Speaker Comparisons
How JBL Partybox 310 compares with other leading options:
- Sony ULT Tower 7 vs JBL Partybox 310
- JBL Partybox 310 vs JBL Partybox 330
- JBL Partybox 310 vs JBL Partybox Stage 320
- Sony ULT Tower 5 vs JBL Partybox 310
- JBL Partybox 310 vs JBL Partybox Club 120
Prices on this page were last checked October 12, 2026 at 4:13 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
JBL Partybox 310: $449.95 Discontinued Amazon $449.95 eBay
Newer model: the JBL Partybox 330, ranked higher, rated 4.6/5, released Jun 2026.
Older model: the JBL Partybox 300 (ranked lower, rated 4.3/5). See every JBL PartyBox generation.
Same family: the JBL Partybox 110 (smaller model, ranked lower, rated 4.4/5) and the JBL Partybox 710 (larger model, rated 4.7/5).
Pros: Absolute deepest bass of any battery powered speaker, most balanced sound in the class, handle and wheels are convenient. Increase treble one step in the app EQ to make it more neutral. Customizable color lighting modes. Very close to the JBL Partybox Stage 320 in terms of performance. Measured bass extension of 32Hz (-10dB).
Cons: Very large. Discontinued.
Full JBL Partybox 310 review and specifications →
| Released | Sep 2020 (6 years ago) |
|---|---|
| Amplifier Power | 240W |
| App | Yes |
| Aux Input | Yes |
| Bass Extension (-10dB) | 32Hz |
| Battery Life | 18 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.1 |
| Charging Time | 3.5 hours |
| Digital Aux Input | No |
| Dimensions | 27.1”H x 12.8”W x 14.5”D (687.7 x 325.6 x 367.8 mm) |
| Drivers | 2x 6.5” (165mm) woofers + 2x 2.5” (65mm) tweeters |
| EQ | Yes (3 band) |
| Guitar Input | Yes |
| IP Rating | IPX4 |
| Lights | Yes |
| Microphone Input | Yes (Karaoke mode with echo effect) |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | Yes (USB-A, 5V/2.1A) |
| Power Input | AC Power cord |
| Stereo | Partially |
| Strap | No |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 37.5 lbs (17 kg) |
| Wheels | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- DLX Willington: SONY SRS XP700 vs JBL PARTYBOX 310 First Impressions Binaural Sound Sample Sound Comparison More from DLXWillington →
- Jay’s Straight Up Reviews & More: JBL Partybox Stage 320 vs 310 🛜 Defcon 5🚨 Bass Alert! Take Shelter Immediately! 😲 Best Bass Goes To? More from JaysStraightUpReviews →
- Jay’s Straight Up Reviews & More: JBL Partybox Stage 320 vs 310 🥳 A Family Feud! Battery Powered🔋Bluetooth Party Speakers Face-Off🤬
- Jay’s Straight Up Reviews & More: LG XL7 vs JBL Partybox 310 🏠 Indoor Bluetooth Party Speaker Battle. Plugged in🔌
- Jay’s Straight Up Reviews & More: Sony SRS-XV900 vs JBL Partybox 310 - Can the JBL Middleweight 💪🏽 Compete With The Sony Heavyweight?
- Jay’s Straight Up Reviews & More: Basement Bass Battle 💣 Sony XV800 ☢️ LG XL7 🔆 JBL Partybox 310 ☣️ All Plugged in, Sound Comparison
- KULAS TECH SHOW: JBL Partybox 310, 100, on the Go Sound comparison More from KULASTECHSHOW20 →
- GYMCADDY: Soundboks Go Vs JBL Partybox 310 Vs Sony XP700 More from GYMCADDY →
- GYMCADDY: LG XBOOM XL7 Vs JBL Partybox 310 Vs Sony XP700
- Flossy Carter: JBL PartyBox 310 vs PartyBox 300 More from FlossyCarter →
- Stereo Specs: JBL PARTYBOX 310 VS SONY GTK XB72 SOUND TEST COMPARISON
- Head-to-Head Comparisons
- JBL Partybox 310 vs JBL Partybox Stage 320
- JBL Partybox 310 vs Sony ULT Tower 5
- JBL Partybox 310 vs JBL Partybox 330
- JBL Partybox 310 vs JBL Partybox Club 120
- JBL Partybox 310 vs JBL Partybox 130
- JBL Partybox 310 vs Sony ULT Tower 7
- JBL Partybox 310 vs JBL Partybox 100
- JBL Partybox 310 vs JBL Partybox 110
- See all 44 comparisons
W-King T9 Pro: $171.49 AliExpress $171.49 eBay
Pros: A feature-rich rolling party speaker with dual 6.5-inch woofers, removable battery, TWS pairing, bass presets and music-synced lighting. The swappable battery is especially useful for long events, and its strong output gives it much more headroom than compact Bluetooth speakers.
Cons: Reviewer comparisons describe the tuning as warm and gritty rather than clean or detailed. Its claimed output figures should not be mistaken for neutral sound quality, and a large cabinet with no stated water rating is a poor fit for wet outdoor use.
Full W-King T9 Pro review and specifications →
| Released | Feb 2024 (2 years ago) |
|---|---|
| Amplifier Power | 250W (peak) |
| App | No |
| Aux Input | Yes |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.3 |
| Charging Time | 4 hours |
| Digital Aux Input | No |
| Dimensions | 10.8” x 10.1” x 21.1” (274 x 255.7 x 535.5 mm) |
| Drivers | 2x 6.5” woofers, 2x 2.5” tweeters |
| EQ | No |
| Frequency Response | 50Hz - 20kHz (Manufacturer specified) |
| IP Rating | None |
| Lights | Yes |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | No |
| USB Playback | Yes |
| Weight | 20 lbs (9.05 kg) |
| Wheels | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons