
Sony Ultra Lightweight Stereo
Score: 72/100
Sony MDREX15AP/B
Score: 71/100Rankings

The Sony MDR-E9LP Ultra Lightweight In-Ear headphones are a budget-friendly wired earbud with 13.5 mm drivers, weighing only 6 g. They deliver balanced sound with notable bass, passive noise isolation, and broad device compatibility, but lack modern features like a microphone, controls, or water resistance.

The Sony MDR-EX15AP/B is a budget-friendly wired in-ear headset with a 9 mm dynamic driver, solid bass and clear mids/highs, a lightweight design and an inline mic, but it lacks ANC, water resistance and advanced controls.
| Attribute | ![]() | ![]() |
|---|---|---|
13.5 mmbest | 9 mm | |
18 Hzbest | 8 Hz | |
22,000 Hzbest | 22,000 Hzbest | |
104 dBbest | 100 dB | |
16 Ωbest | 16 Ωbest | |
| ↓ lower better | 6.01 g | 3 gbest |
— | 12 monthsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Audio(4) | ||
Driver Size (mm) | 13.5 mm | 9 mm |
Frequency Response (Low) (Hz) | 18 Hz | 8 Hz |
Sensitivity (dB) | 104 dB | 100 dB |
Microphone | false | true |
Build & Design(1) | ||
Weight (g) | 6.01 g | 3 g |
Battery & Power(1) | ||
Charging Port Type | 3.5 mm | 3.5mm |

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

Professional reviewers note that while the MDR-E9LP lacks modern conveniences such as ANC or wireless connectivity, its neodymium drivers and open-air design give it a surprisingly balanced and bass-rich sound for a budget model.
Everyday users appreciate the ultra-light weight, comfortable fit, and solid bass, often citing years of reliable use. The most common complaints revolve around the fragile 3.5 mm plug, lack of a mic or controls, and occasional fit issues during active use.

“Best non-noise-cancelling earbuds I've tried”

“Jack becomes loose after a few weeks”

“Great sound for the price, especially the bass.”




Professional reviewers highlight the headset's solid audio performance for its price, noting the 9 mm dynamic driver, 100 dB/mW sensitivity, and 8-22 kHz frequency response. They also praise its stylish design and Smart Key app support, while noting the lack of volume control and ANC.
Users praise the earbuds for strong bass, clear mids/highs, comfort during long wear, and durability suitable for children. Common complaints focus on one-earbud failure, lack of inline volume control, inconsistent mic performance on some Android devices, and ear-tip fit issues for smaller ears.