Short answer: the Tronsmart Mirtune C3 Plus. It ranks #84 of 182 medium speakers by sound quality, rated 3.3/5, at $49.99; the Marshall Emberton II ranks #129, rated 2.7/5, and costs $151.99, so there is not much of a tradeoff to weigh.
The Tronsmart Mirtune C3 Plus is the better-sounding option. An affordable waterproof speaker with a separate tweeter, app EQ, Auracast linking, stereo pairing and USB-C audio input. The tradeoff: In side by side tests by Clinch Audio Bass and Mateusz Cholewa, the Xiaomi Sound Party and Soundcore Boom 3i sounded more refined and fuller, and listeners described the C3 Plus’s treble as dull.
The Marshall Emberton II is the longer-running option. A tough waterproof speaker with Marshall styling, a very long battery and quick charging. It is rated for 30 hours of battery against 12 for the Tronsmart Mirtune C3 Plus. It plays in stereo from a single unit, unlike the Tronsmart Mirtune C3 Plus. The catch: Strange unnatural echo-like sound coloration, bass not as deep as competitors.
Buy the Tronsmart Mirtune C3 Plus. It is rated higher for sound quality than the Marshall Emberton II and costs less, so only choose the other one for a particular feature it does better.
Want more options? Browse the full Portable Bluetooth rankings.
Prices on this page were last checked November 14, 2026 at 6:17 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
| Tronsmart Mirtune C3 Plus | Marshall Emberton II | |
|---|---|---|
| Price | $49.99 | $151.99 |
| Ranked | #84 of 182 in Medium Size Portable Bluetooth Speakers | #129 of 182 in Medium Size Portable Bluetooth Speakers |
| Aux Input | No | No |
| Amplifier Power | 50W | 20W |
| App | Yes (Tronsmart) | Yes |
| Battery Life | 12 hours at 50% volume (Manufacturer specified) | 30 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Bluetooth Version | 6.0 | 5.1 |
| Charging Time | 4 hours | - |
| Digital Aux Input | Yes (USB-C) | No |
| Dimensions | 8.3”H x 3.1”W x 3.3”D (210 x 80 x 85 mm) | 6.3” x 2.7” x 3” (160 x 68 x 76 mm) |
| Drivers | 1x racetrack woofer + 1x tweeter | 2x 2” full-range drivers + 2x passive radiators |
| EQ | Yes (app) | Yes (3 presets via app) |
| Frequency Response | 50Hz - 20kHz (Manufacturer specified) | - |
| IP Rating | IPX7 | IP67 |
| Omnidirectional | No | Yes |
| Party Mode | Yes (Auracast) | Yes (Marshall Stack) |
| Power Input | USB-C | USB-C |
| Stereo | No | Yes |
| Strap | Yes (lanyard) | No |
| TWS | Yes | No |
| Weight | 1.8 lbs (0.81 kg) | 1.5 lbs (700 g) |
| Bass Extension (-10dB) | - | 62Hz |
| Bluetooth Latency | - | 80ms |
| Maximum SPL | - | 88dB (measured by Alan Ross Reviews) |
| Built-in Microphone | - | No |
| Power Bank | - | No |
Where the Ratings Come From
- Tronsmart Mirtune C3 Plus: reviews by Oluv, Mateusz Cholewa and Techder Audios.
- Marshall Emberton II: reviews by Alan Ross and Passione Speaker.
This comparison is generated from the ratings, specifications and measurements on each product’s own page, and it updates when that data changes. How we rank explains how each rating is decided.
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