The Bogasing Era S9 Pro is rated 3.4/5 for sound quality, #76 of 176 Medium Size Portable Bluetooth Speakers. See all Portable Bluetooth rankings for every top pick.
Prices on this page were last checked October 26, 2026 at 11:06 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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Brand: Bogasing
#76 Bogasing Era S9 Pro: $85.99 Amazon $85.99 eBay
Pros: A metal grilled two way speaker with very long battery life, aux, microSD and USB-C audio playback, and stereo pairing. A large woofer and a silk dome tweeter, backed by front and rear passive radiators and rated for 50W, with up to 48 hours of playback. In Oluv’s side by side listening test it sounded more balanced than the Tronsmart Mirtune C3 Plus, with bass that reaches deeper rather than simply being boosted. It has Super Bass, Vocal and 3D sound modes, a built-in mic, and two units pair for stereo.
Cons: Oluv still heard a cheap, somewhat boomy character, and at high volume it loses control, with audible distortion and scratchiness where the Tronsmart Mirtune C3 Plus stays cleaner. It is a mono speaker despite its wide body, has no app for custom EQ, and volume changes respond with a noticeable delay. No water resistance rating is listed.
Is the Bogasing Era S9 Pro right for you?
Buy it if
- you want long battery life (claimed 48 hours).
Skip it if
- you will use it near water or outdoors: it has no water resistance rating.
- you want the best value: the higher-rated EarFun Uboom L costs about $36 less.
| Amplifier Power | 50W |
|---|---|
| App | No |
| Aux Input | Yes |
| Battery Life | 48 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Built-in Microphone | Yes |
| Digital Aux Input | Yes (USB-C audio) |
| Dimensions | 4.5”H x 8.9”W x 1.9”D (115 x 226 x 48 mm) |
| Drivers | 1x large woofer + 1x silk dome tweeter + 2x passive radiators (front and rear) |
| EQ | Yes (3 presets: Super Bass, Vocal, 3D) |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Party Mode | No |
| Power Input | USB-C |
| Stereo | No |
| Strap | No |
| TWS | Yes |
| Weight | 1.9 lbs (0.88 kg) |
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Questions about the Bogasing Era S9 Pro? Ask other owners on r/WirelessSpeakers.