Short answer: the W-King D20. It ranks #41 of 112 boombox speakers by sound quality, rated 3.6/5, at $193. The Onn Medium Party Speaker Gen 2 ranks #65, rated 3.1/5, at $90, $103 cheaper, not enough of a saving to outweigh the sound-quality gap.
The Onn Medium Party Speaker Gen 2 is the lighter choice. An affordable waterproof party speaker with a big woofer, lights, a karaoke mic input and FM radio. At 11 lbs (5 kg) it weighs noticeably less than the W-King D20 at 14.3 lbs (6.5 kg). It links with other speakers (Party Sync Mode), which the W-King D20 cannot. The tradeoff: Lacking detail compared to the Onn Large Party gen 2 and not as deep of bass.
The W-King D20 is the better-sounding pick. A loud stereo party speaker with two wireless microphones, a 24 hour battery and water resistance. It has an adjustable EQ, which the Onn Medium Party Speaker Gen 2 lacks. It plays in stereo from a single unit, unlike the Onn Medium Party Speaker Gen 2. The tradeoff: Rising frequency response but upper treble rolled off, 700Hz and 1.2kHz peaks.
Buy the W-King D20. It is rated higher for sound quality, and saving $103 with the Onn Medium Party Speaker Gen 2 does not make up for the sound-quality gap.
Want more options? Browse the full Portable Bluetooth rankings.
An affordable waterproof party speaker with a big woofer, lights, a karaoke mic input and FM radio.
A loud stereo party speaker with two wireless microphones, a 24 hour battery and water resistance.
Prices on this page were last checked October 31, 2026 at 7:11 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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Specifications Side By Side
| Onn Medium Party Speaker Gen 2 | W-King D20 | |
|---|---|---|
| Price | $90 | $193 |
| Ranked | #65 of 112 in Boombox Size Portable Bluetooth Speakers | #41 of 112 in Boombox Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Battery Life | 20 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| FM Tuner | Yes (16 presets) | - |
| IP Rating | IPX7 | IPX6 |
| Microphone Input | Yes (Karaoke mode with echo effect) | - |
| Party Mode | Yes (Party Sync Mode) | No |
| Power Bank | Yes (USB-A, 5V/2.1A) | Yes |
| Power Input | AC Power cord | USB-C |
| Stereo | No | Yes |
| Omnidirectional | No | No |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| App | No | Yes (W-King app) |
| EQ | No | Yes (App + button modes) |
| TWS | Yes | Yes |
| USB Playback | No | Yes |
| Built-in Microphone | No | No |
| Amplifier Power | 50W RMS / 200W peak | 200W |
| Dimensions | 9.6” x 10.9” x 15.1” (244.1 x 277.9 x 383 mm) | 19.9” x 8.5” x 10.6” (506 x 217 x 270 mm) |
| Weight | 11 lbs (5 kg) | 14.3 lbs (6500 g) |
| Drivers | 8” (203mm) woofer + tweeters | 4.5” + 3.5” drivers + 1.2” tweeters |
| Digital Aux Input | No | No |
| Lights | Yes | - |
| Bass Extension (-10dB) | - | ~42Hz |
| Maximum SPL | - | 112dB (measured by Alan Ross Reviews) |
| MicroSD Playback | - | Yes |
| Wireless Microphones | - | Yes |
| Bluetooth Version | - | 5.3 |
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