PRIMEPLUS - MD528 Ultra-Thin Invisible Bluetooth Earbuds, Lightweight, 10.4mm Slim Design, BT 5.3, LED Display, HD Voice - Black
About this product
Experience ultimate comfort and true invisibility with the MD528 Ultra-Thin Bluetooth Earbuds. Engineered for those who demand both style and seamless functionality, these featherlight earbuds weigh only 3.2g combined and feature a groundbreaking 10.4mm ultra-slim profile—making them nearly undetectable when worn. Whether you're catching up on sleep, grinding through work, or enjoying your favorite tunes on the go, the biomimic curved design ensures zero pressure, even when lying on your side. Equipped with advanced BT 5.3 technology, HD voice clarity, and a smart LED digital display, the MD528 isn't just an earbud—it's your all-day, all-night audio companion.
Color
BlackFeatures
Ultra-Thin & Invisible Design
Measuring just 10.4mm thick, these earbuds are roughly half the size of standard models, allowing them to virtually vanish in your ear. They deliver a discreet, low-profile look that's perfect for sleeping, focused work, or all-day wear without drawing attention.
Featherlight Comfort
With a combined weight of only 3.2g, these earbuds are lighter than a coin and barely perceptible once in place. The ultra-light build ensures lasting comfort, even during extended use or while lying on your side.
Sleep-Friendly & Side-Sleeper Approved
Designed with a biomimetic curved surface, the earbuds contour naturally to your ear canal. This ergonomic shape eliminates pressure points and discomfort, making them an excellent choice for side sleepers and overnight wear.
Advanced BT 5.3 + HD Voice
Powered by Bluetooth 5.3, these earbuds offer a stable, low-latency connection and enhanced signal reliability. Coupled with HD voice technology, they produce crystal-clear calls and balanced sound, whether you're in meetings, at the gym, or chatting late into the night.
Smart LED Display & Reliable Battery Life
The charging case features a digital LED battery indicator, giving you real-time visibility of your power level at a glance. Combined with ultra-long standby performance, this setup reliably supports all-day listening and daily use.
Specifications
- Connection TypeWirelessWireless ConnectivityBluetoothTrue WirelessYesHeadphone FitIn-Ear
Reviews
Rating 3.5 out of 5 stars with 2 reviews
The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
Compare similar products

Experience ultimate comfort and true invisibility with the MD528 Ultra-Thin Bluetooth Earbuds. Engineered for those who demand both style and seamless functionality, these featherlight earbuds weigh only 3.2g combined and feature a groundbreaking 10.4mm ultra-slim profile—making them nearly undetectable when worn. Whether you're catching up on sleep, grinding through work, or enjoying your favorite tunes on the go, the biomimic curved design ensures zero pressure, even when lying on your side. Equipped with advanced BT 5.3 technology, HD voice clarity, and a smart LED digital display, the MD528 isn't just an earbud—it's your all-day, all-night audio companion.

Fall asleep faster and stay asleep longer — even on your side. The Soundcore Sleep A20 combines noise masking with an ergonomic fit designed specifically for side sleepers. Ultra-soft material wraps the entire contact area, while the Air Wing distributes pressure so you wake up rested, not sore. With up to 14 hours of battery per charge — 80 hours with the case — and a customizable sound library in the app, everything about the Sleep A20 is built for one thing: uninterrupted sleep.

Reclaim your nights. The Soundcore Sleep A30 combines active noise cancellation, passive isolation, and adaptive snore masking to create the quiet you need to fall asleep — and stay asleep. At just 3 grams per earbud, the ultra-soft silicone body and 3D ergonomic design follow the natural contours of your ear, staying comfortable from first drift to morning alarm. Stream Sleep Stories from Calm, tune into AI Brainwave Audio, or build your own white noise mix from the sound library. With 8–10 hours of playtime per charge and sleep monitoring that tracks your rest, the A30 does more than block noise — it helps you understand your sleep.

Say hello to JBuds Mini our smallest earbuds ever, where size doesn't compromise performance. These tiny titans pack a punch and deliver a powerhouse of features that will elevate your listening experience. From rocking out to your favorite tunes at the gym or diving into a captivating podcast on a crowded commute, prepare to immerse yourself in impressive audio quality that truly defies its size
| Pros for PRIMEPLUS - MD528 Ultra-Thin Invisible Bluetooth Earbuds, Lightweight, 10.4mm Slim Design, BT 5.3, LED Display, HD Voice - Black | |||
|---|---|---|---|
| There were no pros for this product— | Comfort, Sound Quality, Battery Life, Fit, Sleep Tracking | Comfort, Battery Life, Noise Cancellation, Build Quality | Sound Quality, Battery Life, Comfort, Size, Portability |
| Cons for PRIMEPLUS - MD528 Ultra-Thin Invisible Bluetooth Earbuds, Lightweight, 10.4mm Slim Design, BT 5.3, LED Display, HD Voice - Black | |||
| There were no cons for this product— | Connectivity, Case Design, Volume Control | Connectivity | Connectivity, Volume, Touch Controls, Bass |
Specs
Be the first to ask a question.
We’ll try to get your question answered within 24 hours by a Best Buy customer or brand representative.
























































