Short answer: the W-King D320. It ranks #51 of 175 medium speakers by sound quality (rated 3.6/5) at $52.92 and is still sold new; the Harman Kardon Esquire 2 ranks #155 (rated 2.3/5) and is discontinued, so it is only an option used.
The W-King D320 is the better-sounding, longer-running option. A 3.1 lbs (1.4 kg), IP67-rated travel speaker with claimed 40W output, USB-C charging, aux and microSD playback, speakerphone capability and an app with adjustable EQ. It is rated for 24 hours of battery against 8 for the Harman Kardon Esquire 2. It is rated IP67 against IPX4 for the Harman Kardon Esquire 2. It has an adjustable EQ, which the Harman Kardon Esquire 2 lacks. The catch: A single D320 is not stereo, and its warm balance trades away some detail and upper-treble air.
The Harman Kardon Esquire 2 is the lighter choice. Doubles as a conferencing speakerphone with a 4-mic array and noise/echo cancellation. At 0.8 lbs (350 g) it weighs much less than the W-King D320 at 3.1 lbs (1.4 kg). Watch for: Bass is weak, vocal and instrument separation is underwhelming and sounds tinny at high volume.
Buy the W-King D320. It is rated higher for sound quality; the Harman Kardon Esquire 2 is no longer sold new.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| W-King D320 | Harman Kardon Esquire 2 | |
|---|---|---|
| Price | $52.92 | $200 Discontinued |
| Ranked | #51 of 175 in Medium Size Portable Bluetooth Speakers | #155 of 175 in Medium Size Portable Bluetooth Speakers |
| App | Yes | No |
| Aux Input | Yes | Yes |
| Battery Life | 24 hours (Manufacturer specified) | 8 hours (Manufacturer specified) |
| Built-in Microphone | Yes | Yes |
| EQ | Yes | No |
| IP Rating | IP67 | IPX4 |
| MicroSD Playback | Yes | - |
| Stereo | No | No |
| Omnidirectional | No | No |
| TWS | No | No |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.3 | 4.1 |
| Dimensions | 3.3” x 8.4” (83 x 214 mm) (diameter x height) | 7.5” x 5.1” x 1.3” (190 x 130 x 34 mm) |
| Drivers | 52mm x 91mm woofer, 2x 25mm tweeters + 2x passive radiators | 4x 1.25” (32mm) full-range drivers |
| Frequency Response | 100Hz - 18kHz (Manufacturer specified) | - |
| Power Input | USB-C | Micro USB |
| Amplifier Power | 40W | 16W |
| Weight | 3.1 lbs (1.4 kg) | 0.8 lbs (0.35 kg) |
| Digital Aux Input | No | No |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) | SBC |
| Power Bank | - | Yes (USB-A) |
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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
W-King D320: $52.92 AliExpress $52.92 eBay
Pros: A 1.4kg, IP67-rated travel speaker with claimed 40W output, USB-C charging, aux and microSD playback, speakerphone capability and an app with adjustable EQ. Owner reports praise its loud, deep-for-size bass and long runtime, while its two tweeters and passive radiators make it a capable choice for casual outdoor listening.
Cons: A single D320 is not stereo, and its warm balance trades away some detail and upper-treble air. The claimed 100Hz low-frequency specification suggests that its perceived bass should not be mistaken for true sub-bass; evaluate its tuning with the app rather than expecting a neutral default.
Full W-King D320 review and specifications →
| Released | Aug 2023 (3 years ago) |
|---|---|
| Amplifier Power | 40W |
| App | Yes |
| Aux Input | Yes |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) |
| Bluetooth Version | 5.3 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 3.3” x 8.4” (83 x 214 mm) (diameter x height) |
| Drivers | 52mm x 91mm woofer, 2x 25mm tweeters + 2x passive radiators |
| EQ | Yes |
| Frequency Response | 100Hz - 18kHz (Manufacturer specified) |
| IP Rating | IP67 |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Power Input | USB-C |
| Stereo | No |
| TWS | No |
| Weight | 3.1 lbs (1.4 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Techder Audios: W-king D320 VS Mifa Wildrod "DUAL VS SINGLE TWEETERS!" More from techderaudios →
- Jay’s Straight Up Reviews & More: Ultimate Ears MegaBoom 4 vs W-King D320 🔋Does Paying More Get You Less? 😧 More from JaysStraightUpReviews →
- Audio y Mas 🔊: Altavoces JBL Flip 6 vs W-King D320: ¿Cuál es el mejor en calidad de sonido? 🔊
- Head-to-Head Comparisons
Harman Kardon Esquire 2: $200 Discontinued eBay
Pros: Doubles as a conferencing speakerphone with a 4-mic array and noise/echo cancellation. Flat, compact design packs easily. USB charge-out for topping off a phone.
Cons: Bass is weak, vocal and instrument separation is underwhelming and sounds tinny at high volume. Discontinued.
Full Harman Kardon Esquire 2 review and specifications →
| Released | 2015 (11 years ago) |
|---|---|
| Amplifier Power | 16W |
| App | No |
| Aux Input | Yes |
| Battery Life | 8 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 4.1 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 7.5” x 5.1” x 1.3” (190 x 130 x 34 mm) |
| Drivers | 4x 1.25” (32mm) full-range drivers |
| EQ | No |
| IP Rating | IPX4 |
| Omnidirectional | No |
| Power Bank | Yes (USB-A) |
| Power Input | Micro USB |
| Stereo | No |
| TWS | No |
| Weight | 0.8 lbs (0.35 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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