Short answer: the JBL Partybox 310 for better sound quality, the W-King T9 Pro for the lower price. The JBL Partybox 310 ranks #3 of 50 party speakers at $579.95. The W-King T9 Pro ranks #35 at $171.49, $408.46 cheaper.
What the JBL Partybox 310 offers: 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 320 in terms of performance. Watch for: Very large.
What the W-King T9 Pro offers: 250W peak power, 120dB sound output with dual 6.5” woofers + dual 2.5” tweeters. Removable rechargeable battery allows continuous play via battery swapping. 12 custom bass settings for EQ adjustments by music genre. Music-synchronized LED lights (ambient to high-energy strobes). True Wireless Stereo for stereo pairing. Bluetooth 5.3, great customer service. Watch for: Sounds warm, somewhat gritty, not as detailed as higher ranked speakers
Buy the JBL Partybox 310 if sound quality is the priority over the price, or the W-King T9 Pro if the price is the priority over sound quality.
If battery life is a priority, the JBL Partybox 310 is rated for 18 hours versus 12 hours for the W-King T9 Pro.
If water resistance matters to you, the JBL Partybox 310 at IPX4 (splashing) holds up far better than the W-King T9 Pro at no water resistance.
Specifications Side By Side
| JBL Partybox 310 | W-King T9 Pro | |
|---|---|---|
| Price | $579.95 Discontinued | $171.49 |
| Ranked | #3 of 50 in Party Size Portable Bluetooth Speakers | #35 of 50 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 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 | - |
| Stereo | Partially | Yes |
| Omnidirectional | No | No |
| TWS | Yes | No |
| USB Playback | Yes | Yes |
| Weight | 37.5 lbs / 17 kg | 20 lbs / 9.05 kg |
| Output Power | 240W | 250W (peak) |
| Drivers | 2x 6.5" (165mm) woofers + 2x 2.5" (65mm) tweeters | 2x 6.5" woofers, 2x 2.5" tweeters |
| Discontinued | Yes | - |
| Digital Aux Input | No | No |
| Bluetooth Version | - | 5.3 |
| Dimensions | - | 10.8" x 10.1" x 21.1" (274 x 255.7 x 535.5 mm) |
| Frequency Response | - | 50Hz - 20kHz (Manufacturer specified) |
Related Speaker Comparisons
A few more comparisons worth a look in the same class:
- JBL Partybox Club 120 vs Sony SRS-XP700
- JBL Partybox Club 120 vs W-King T12
- JBL Partybox 110 vs JBL Partybox Club 120
- Sony SRS-XP500 vs W-King T9 Pro
- W-King T9 Pro vs JBL Eon One Compact
Prices on this page were last checked August 27, 2026 at 10:09 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: $579.95 Discontinued Amazon eBay
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 320 in terms of performance.
Cons: Very large. Discontinued.
Full JBL Partybox 310 review and specifications →
| App | Yes |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | 32Hz |
| Battery Life | 18 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Charging Time | 3.5 hours |
| Digital Aux Input | No |
| Discontinued | Yes |
| Drivers | 2x 6.5" (165mm) woofers + 2x 2.5" (65mm) tweeters |
| EQ | Yes (3 band) |
| Guitar Input | Yes |
| IP Rating | IPX4 |
| Microphone Input | Yes (Karaoke mode with echo effect) |
| Omnidirectional | No |
| Output Power | 240W |
| Party Mode | No |
| Power Bank | Yes (USB-A, 5V/2.1A) |
| Power Input | AC Power cord |
| Stereo | Partially |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 37.5 lbs / 17 kg |
- Links
- Reviews, Comparisons and Sound Samples
- KULAS TECH SHOW: JBL Partybox 310, 100, on the Go Sound comparison More from KULASTECHSHOW20 →
- Flossy Carter: JBL PartyBox 310 vs PartyBox 300 More from FlossyCarter →
- DLX Willington: SONY SRS XP700 vs JBL PARTYBOX 310 First Impressions Binaural Sound Sample Sound Comparison More from DLXWillington →
- GYMCADDY: Soundboks Go Vs JBL Partybox 310 Vs Sony XP700 More from GYMCADDY →
- Jay’s Straight Up Reviews & More: Basement Bass Battle 💣 Sony XV800 ☢️ LG XL7 🔆 JBL Partybox 310 ☣️ All Plugged in, Sound Comparison More from JaysStraightUpReviews →
- Jay’s Straight Up Reviews & More: JBL Partybox Stage 320 vs 310 🛜 Defcon 5🚨 Bass Alert! Take Shelter Immediately! 😲 Best Bass Goes To?
- 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🔌
- GYMCADDY: LG XBOOM XL7 Vs JBL Partybox 310 Vs Sony XP700
- Stereo Specs: JBL PARTYBOX 310 VS SONY GTK XB72 SOUND TEST COMPARISON
- Jay’s Straight Up Reviews & More: Sony SRS-XV900 vs JBL Partybox 310 - Can the JBL Middleweight 💪🏽 Compete With The Sony Heavyweight?
- Reddit Search for JBL Partybox 310 Review
- Head-to-Head Comparisons
- JBL Partybox 310 vs JBL Partybox Club 120
- JBL Partybox 310 vs JBL Partybox Stage 320
- JBL Partybox 310 vs JBL Partybox 330
- JBL Partybox 310 vs JBL Partybox 130
- JBL Partybox 310 vs JBL Partybox 100
- JBL Partybox 310 vs JBL Partybox 110
- JBL Partybox 310 vs JBL Partybox 300
- JBL Partybox 310 vs Teufel Rockster Neo
- See all 30 comparisons
W-King T9 Pro: $171.49 Aliexpress eBay
Pros: 250W peak power, 120dB sound output with dual 6.5” woofers + dual 2.5” tweeters. Removable rechargeable battery allows continuous play via battery swapping. 12 custom bass settings for EQ adjustments by music genre. Music-synchronized LED lights (ambient to high-energy strobes). True Wireless Stereo for stereo pairing. Bluetooth 5.3, great customer service.
Cons: Sounds warm, somewhat gritty, not as detailed as higher ranked speakers
Full W-King T9 Pro review and specifications →
| App | No |
|---|---|
| Aux Input | Yes |
| Battery Life | 12 hours (Manufacturer specified) |
| 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 |
| Omnidirectional | No |
| Output Power | 250W (peak) |
| Party Mode | No |
| Power Bank | No |
| Stereo | Yes |
| TWS | No |
| USB Playback | Yes |
| Weight | 20 lbs / 9.05 kg |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons