
Sanyun SW102
Score: 82/100
LENRUE A39PRO
Score: 79/100Rankings

USB-powered 2.0 speakers with strong total output and deep bass for their size, featuring a metal build and compact footprint, though lacking wireless features.

The LENRUE A39PRO is a USB-powered 10 W stereo soundbar with RGB lighting, offering clear audio and convenient top-mounted controls for desktop use. It delivers more power than typical USB speakers but lacks a true subwoofer, limiting deep bass.
| Attribute | ![]() | ![]() |
|---|---|---|
10 Wbest | 10 Wbest | |
| ↓ lower better | 30 Hz | 20 Hzbest |
20,000 Hzbest | 20,000 Hzbest | |
40 mmbest | — | |
1 years | 2 yearsbest | |
| ↓ lower better | 0.52 kgbest | 0.53 kg |
— | 4 Ωbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Warranty(1) | ||
Warranty Period (years) | 1 years | 2 years |
Audio(1) | ||
Frequency Response (Low) (Hz) | 30 Hz | 20 Hz |
Power & Battery(1) | ||
Power Source Type | USB-powered | USB |
Connectivity(1) | ||
Connectivity Options | USB, 3.5mm aux | USB power, 3.5mm audio input, 3.5mm headphone jack, 3.5mm mic jack |
Build & Design(2) | ||
Mounting Type | Tabletop/Shelf/Floor-standing | Tabletop |
Control Method | In-line volume control | Top knob & switch |
Accessories(1) | ||
Included Accessories | 2 speakers, USB power cable, 3.5mm audio cable | Soundbar unit, USB power cable, 3.5mm audio cable, User manual |
Physical Specs(2) | ||
Overall Weight (kg) | 0.52 kg | 0.53 kg |
Dimensions | 7.5 x 10.0 x 7.0 cm | 5.51 x 6.5 x 32.0 cm |


Products in the top-left offer the best value (high score, low price).

Professional reviewers and editors highlight the SW102's impressive bass response and overall sound quality for a speaker of its size, crediting the closed-cavity design and bass radiators, while noting solid metal construction and lack of wireless features.
Everyday users consistently praise the SW102 for delivering powerful, clear audio in a tiny footprint, calling it "small but mighty", but note occasional hissing, low volume on weak USB ports, and the lack of Bluetooth.

Professional reviewers consider the A39PRO a solid budget option, noting its convenient volume knob, attractive RGB lighting, and hassle-free USB power, while cautioning that bass lacks depth due to the absence of a true subwoofer.
Everyday users generally praise the speaker for delivering clear, louder audio than built-in laptop speakers, its straightforward setup, and the fun RGB lighting. Complaints focus on missing microphone ports, occasional static, and short cable lengths.
“small but mighty”

“great upgrade from built-in laptop speakers.”

“Great sound for the price”


