Meet the SH-309 USB Large Audio Subwoofer Bluetooth Speaker—a compact, portable powerhouse built for outdoor adventures, car trips, and home use. With a built-in subwoofer, IPX7 waterproofing, and Bluetooth 5.3, this little speaker punches far above its size, delivering rich bass and clear highs wherever you go.

Key specifications

• Model: SH-309
• Brand: other
• Applicable scenarios: Mobile and portable
• Connection method: Bluetooth
• Bluetooth version: 5.3
• Frequency response: 100 Hz – 20 kHz
• Signal to noise ratio: ≥ 70 dB
• Effective distance: 10 m
• Box material: ABS
• Appearance size: 86 × 86 × 90 mm
• Weight: 255 g
• Color options: Rose Red, Starry Black, Slate Gray, Sky Blue
• Waterproof grade: IPX7
• Power supply mode: USB
• Built-in battery capacity: 500–800 mAh
• Rated power: 1 W
• Origin: China
• After sales service: Store three guarantees

Why this speaker stands out

Despite its compact footprint, the SH-309 is engineered to deliver a surprisingly fuller sound thanks to its integrated subwoofer. The 100 Hz to 20 kHz frequency range ensures you hear punchy bass and sparkling highs, making it ideal for crowds or personal listening sessions alike. Bluetooth 5.3 provides stable connections with quick pairing and efficient power use, so you can enjoy longer playback between charges. The IPX7 rating means you don’t have to dial back your plans—rain, splashes, or a splash of sweat won’t stop the music.

Use cases

• Outdoor activities: picnics, park gatherings, camping, beach days
• Travel and commuting: car rides, camping trips, or hikes
• Home use: desks, small apartments, or dorm rooms where space is at a premium