Short answer: the Ultimate Ears Everboom. It ranks #35 of 105 large speakers by sound quality, rated 3.9/5, at $159.99. The W-King T9 ranks #50, rated 3.6/5, at $111.23, $48.76 cheaper, a saving that is not big enough to make up the sound-quality gap.
The Ultimate Ears Everboom is the lighter, tougher pick. At 2.1 lbs (949 g) it weighs much less than the W-King T9 at 10.1 lbs (4.6 kg). It is rated IP67, while the W-King T9 has no water resistance. It links with other speakers (PartyUp up to 50 speakers), which the W-King T9 cannot. Watch for: Careful placement and volume setting remain important for balanced sound.
What the W-King T9 does well: 80W output power, 106dB max volume, 24-hour battery life, power bank function, Bluetooth 5.3 with 100ft range, TWS stereo pairing with wireless microphone, dual subwoofers, RGB lighting, MicroSD and AUX support, USB-C charging, karaoke capability. It plays in stereo from a single unit, unlike the Ultimate Ears Everboom. Watch for: Peaks in the upper mids which makes it sound a bit harsh.
Buy the Ultimate Ears Everboom. It is rated higher for sound quality, and the $48.76 saving on the W-King T9 is not enough to make up the difference.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Ultimate Ears Everboom | W-King T9 | |
|---|---|---|
| Price | $159.99 | $111.23 |
| Ranked | #35 of 105 in Large Size Portable Bluetooth Speakers | #50 of 105 in Large Size Portable Bluetooth Speakers |
| App | Yes | No |
| Battery Life | 20 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| EQ | Yes | No |
| IP Rating | IP67 | None |
| Party Mode | Yes (PartyUp up to 50 speakers) | No |
| Power Bank | No | Yes (USB-A) |
| Power Input | USB-C | USB-C |
| Stereo | No | Yes |
| Omnidirectional | Yes | No |
| TWS | No | Yes |
| Weight | 2.1 lbs (949 g) | 10.1 lbs (4.6 kg) |
| Aux Input | Yes | Yes |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Built-in Microphone | Yes | Yes |
| Bluetooth Version | 5.1 | 5.3 |
| Dimensions | 8.1” x 3.3” x 4.3” (205 x 85 x 110 mm) | 11.8” x 5.9” x 4.7” (300 x 150 x 120 mm) |
| Drivers | 2x 56.6mm x 56.2mm fullrange transducers + 2x passive radiators | 2x 4.04” subwoofers + drivers |
| Amplifier Power | 14W | 80W |
| Digital Aux Input | No | No |
| Strap | Yes (built-in loop) | No |
| Bass Extension (-10dB) | - | 47Hz |
| Maximum SPL | - | 106dB (measured by Alan Ross Reviews) |
| MicroSD Playback | - | Yes |
| Lights | - | Yes |
Related Speaker Comparisons
More top alternatives to Ultimate Ears Everboom:
- Ultimate Ears Everboom vs Vifa Helsinki
- JBL Xtreme 5 vs Ultimate Ears Everboom
- Tribit Stormbox Lava vs Ultimate Ears Everboom
- Ultimate Ears Everboom vs Brane X
- Minirig 4 with subwoofer vs Ultimate Ears Everboom
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.
As an eBay Partner, we may be compensated if you make a purchase.
The Two Speakers In Full
Ultimate Ears Everboom: $159.99 Amazon $159.99 eBay
Pros: Ultimate Ears Everboom uses 2x 56.6mm x 56.2mm fullrange transducers + 2x passive radiators. Its 949 g, claimed 20 hours (Manufacturer specified) battery life, IP67 protection, aux input and mono playback make it a practical option for its intended room or portable use.
Cons: Careful placement and volume setting remain important for balanced sound. Warm tuning with an upper-bass boost and rolled-off treble, and the bass does not go very deep.
Full Ultimate Ears Everboom review and specifications →
| Released | Jun 2024 (2 years ago) |
|---|---|
| Amplifier Power | 14W |
| App | Yes |
| Aux Input | Yes |
| Battery Life | 20 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.1 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 8.1” x 3.3” x 4.3” (205 x 85 x 110 mm) |
| Drivers | 2x 56.6mm x 56.2mm fullrange transducers + 2x passive radiators |
| EQ | Yes |
| IP Rating | IP67 |
| Omnidirectional | Yes |
| Party Mode | Yes (PartyUp up to 50 speakers) |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | No |
| Strap | Yes (built-in loop) |
| TWS | No |
| Weight | 2.1 lbs (949 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Ultimate Ears Everboom vs Marshall Middleton
- Ultimate Ears Everboom vs LG Xboom Bounce
- Ultimate Ears Everboom vs Marshall Middleton II
- Ultimate Ears Everboom vs Sonos Move
- Ultimate Ears Everboom vs Sonos Move 2
- Ultimate Ears Everboom vs Marshall Kilburn II
- Ultimate Ears Everboom vs Soundcore Motion X500
- Ultimate Ears Everboom vs JBL Xtreme 4
- See all 51 comparisons
W-King T9: $111.23 Amazon $129.98 AliExpress $111.23 Lowest eBay
Pros: 80W output power, 106dB max volume, 24-hour battery life, power bank function, Bluetooth 5.3 with 100ft range, TWS stereo pairing with wireless microphone, dual subwoofers, RGB lighting, MicroSD and AUX support, USB-C charging, karaoke capability. Measured bass extension of 47Hz (-10dB).
Cons: Peaks in the upper mids which makes it sound a bit harsh.
Full W-King T9 review and specifications →
| Released | Apr 2021 (5 years ago) |
|---|---|
| Amplifier Power | 80W |
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | 47Hz |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.3 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 11.8” x 5.9” x 4.7” (300 x 150 x 120 mm) |
| Drivers | 2x 4.04” subwoofers + drivers |
| EQ | No |
| IP Rating | None |
| Lights | Yes |
| Maximum SPL | 106dB (measured by Alan Ross Reviews) |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | Yes (USB-A) |
| Power Input | USB-C |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| Weight | 10.1 lbs (4.6 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Alan Ross Reviews: W-King T9 or Soundcore Motion Boom - King vs World Champion! 👌 More from alanrossreviews →
- Alan Ross Reviews: W King T11 party boombox and Karaoke machine review vs T9, Stormbox Blast and Boombox 3.
- Alan Ross Reviews: W-King t9 party speaker vs Soundcore Rave Neo and Trance (Rave Mega) 🥳
- Jay’s Straight Up Reviews & More: W-King T9 🆚 ONN Large Party Speaker -By Request for Big Tee. Can the Smaller T9 Hang With The ONN? More from JaysStraightUpReviews →
- Head-to-Head Comparisons