Short answer: the Gemini GRV-650L. It ranks #50 of 89 boombox speakers by sound quality, rated 3.3/5, at $149.95. The Onn Medium Party Speaker Gen 2 ranks #58, rated 3.1/5, at $90, $59.95 cheaper, which does not close the gap in sound quality.
What the Gemini GRV-650L does well: Pretty amazing value for the money. The tradeoff: Not quite as deep bass as the top ranked speakers.
Why pick the Onn Medium Party Speaker Gen 2: Under $100 with LED lights synced to music. The catch: Lacking detail compared to the Onn Large Party Gen 2 and not as deep of bass.
Buy the Gemini GRV-650L. It is rated higher for sound quality, and the $59.95 saving on the Onn Medium Party Speaker Gen 2 is not enough to make up the difference.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Gemini GRV-650L | Onn Medium Party Speaker Gen 2 | |
|---|---|---|
| Price | $149.95 | $90 |
| Ranked | #50 of 89 in Boombox Size Portable Bluetooth Speakers | #58 of 89 in Boombox Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | ~47Hz | - |
| Battery Life | 9 hours (Manufacturer specified) | 20 hours (Manufacturer specified) |
| MicroSD Playback | Yes | - |
| Power Bank | Yes | Yes (USB-A, 5V/2.1A) |
| Stereo | Partially (1 woofer) | No |
| Omnidirectional | No | No |
| USB Playback | Yes | No |
| Weight | 15.7 lbs (7.1 kg) | 11 lbs (5 kg) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| App | No | No |
| EQ | No | No |
| TWS | Yes | Yes |
| Party Mode | No | Yes (Party Sync Mode) |
| Built-in Microphone | No | No |
| Power Input | USB-C | AC Power cord |
| FM Tuner | Yes | Yes (16 presets) |
| Amplifier Power | 320W | 50W RMS / 200W peak |
| Dimensions | 10.9” x 10.2” x 14.4” (277 x 260 x 366 mm) | 9.6” x 10.9” x 15.1” (244.1 x 277.9 x 383 mm) |
| Drivers | 6.5” woofer + tweeter | 8” (203mm) woofer + tweeters |
| IP Rating | IPX5 | IPX7 |
| Maximum SPL | 104dB (Manufacturer specified) | - |
| Digital Aux Input | No | No |
| Bluetooth Version | 5.3 | - |
| Strap | No | - |
| Microphone Input | - | Yes (Karaoke mode with echo effect) |
| Lights | - | Yes |
Related Speaker Comparisons
How Gemini GRV-650L compares with other leading options:
- Tribit Stormbox Blast vs Gemini GRV-650L
- JBL Partybox Encore 2 vs Gemini GRV-650L
- JBL Partybox Encore Essential 2 vs Gemini GRV-650L
- JBL Partybox Encore Essential vs Gemini GRV-650L
- Harman Kardon Onyx Studio 8 vs Gemini GRV-650L
Prices on this page were last checked September 30, 2026 at 2:57 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
Gemini GRV-650L: $149.95 Amazon eBay
Pros: Pretty amazing value for the money. Decently deep bass, not quite as good as top ranked speakers. Included wireless microphone and remote control. Measured bass extension of ~47Hz (-10dB).
Cons: Not quite as deep bass as the top ranked speakers.
Full Gemini GRV-650L review and specifications →
| Amplifier Power | 320W |
|---|---|
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | ~47Hz |
| Battery Life | 9 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.3 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 10.9” x 10.2” x 14.4” (277 x 260 x 366 mm) |
| Drivers | 6.5” woofer + tweeter |
| EQ | No |
| FM Tuner | Yes |
| IP Rating | IPX5 |
| Maximum SPL | 104dB (Manufacturer specified) |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | Yes |
| Power Input | USB-C |
| Stereo | Partially (1 woofer) |
| Strap | No |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 15.7 lbs (7.1 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Gemini GRV-650L vs W-King T11
- Gemini GRV-650L vs Skullcandy Barrel
- Gemini GRV-650L vs Sony ULT Field 7
- Gemini GRV-650L vs JBL Partybox On the Go
- Gemini GRV-650L vs JBL Authentics 300
- Gemini GRV-650L vs W-King X20
- Gemini GRV-650L vs Soundcore Boom 2 Plus
- Gemini GRV-650L vs Zealot ZE01
- See all 27 comparisons
Onn Medium Party Speaker Gen 2: $90 Walmart eBay
Pros: Under $100 with LED lights synced to music. Simple controls, solid Bluetooth range. Mic input for karaoke/emcee. Built-in FM radio with 16 presets. Aux port.
Cons: Lacking detail compared to the Onn Large Party Gen 2 and not as deep of bass. Only available in the United States and Canada.
Full Onn Medium Party Speaker Gen 2 review and specifications →
| Amplifier Power | 50W RMS / 200W peak |
|---|---|
| App | No |
| Aux Input | Yes |
| Battery Life | 20 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 9.6” x 10.9” x 15.1” (244.1 x 277.9 x 383 mm) |
| Drivers | 8” (203mm) woofer + tweeters |
| EQ | No |
| FM Tuner | Yes (16 presets) |
| IP Rating | IPX7 |
| Lights | Yes |
| Microphone Input | Yes (Karaoke mode with echo effect) |
| Omnidirectional | No |
| Party Mode | Yes (Party Sync Mode) |
| Power Bank | Yes (USB-A, 5V/2.1A) |
| Power Input | AC Power cord |
| Stereo | No |
| TWS | Yes |
| USB Playback | No |
| Weight | 11 lbs (5 kg) |
- Reviews, Comparisons and Sound Samples
- Jay’s Straight Up Reviews & More: ONN Large Party Speaker Gen 2 vs Medium Party Speaker Gen 2 🤜🤛A Family Feud🔌Plugged In Bass Boost On More from JaysStraightUpReviews →
- Jay’s Straight Up Reviews & More: Skullcandy Barrel XT vs ONN Medium Party Speaker Gen. 2 😬(Both Bass Boost On🔉) The Price is Right?🤑
- Head-to-Head Comparisons
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