JOYROOM Openfree JR-OE4 Wireless Earbuds – Open-Ear Design with 50H Playtime
Comfortable Open-Ear Experience with Premium Sound
The JOYROOM Openfree JR-OE4 wireless earbuds feature an innovative open-ear design that keeps you aware of your surroundings while delivering immersive 16mm dynamic sound. With Bluetooth 5.4, 50-hour total battery life, and featherlight 10g design, they’re perfect for sports, commuting, and daily use.
Key Features
Ultra-Lightweight & Comfortable
-
Each earbud weighs only 10g with skin-friendly silicone material
-
Open-ear design prevents ear fatigue during long wear
-
Secure fit ideal for running, cycling and workouts
Exceptional Battery Life
-
12.5 hours continuous playback on single charge
-
50 hours total playtime with charging case
-
Real-time digital battery display on case
High-Quality Audio Performance
-
16mm large dynamic drivers for powerful bass
-
Balanced mids and clear highs (20Hz-20KHz range)
-
AAC/SBC audio codec support
Advanced Connectivity
-
Bluetooth 5.4 for stable, low-latency connection
-
Auto-pairing when opening the case
-
10m wireless range with strong signal
Practical Open-Ear Design
-
Stay aware of traffic and conversations
-
IPX4 splash resistance for workouts
-
Touch controls for easy operation
Technical Specifications
| Feature | Specification |
|---|---|
| Model | JR-OE4 |
| Bluetooth Version | 5.4 |
| Playtime | 12.5H (earbuds), 50H (with case) |
| Charging Time | ~3 hours |
| Driver Size | 16mm |
| Frequency Response | 20Hz-20KHz |
| Water Resistance | IPX4 |
| Weight | 10g per earbud, 78.8g total |
| Charging Port | Type-C |
Why Choose JOYROOM Openfree JR-OE4?
-
More comfortable than in-ear buds – open design prevents pressure
-
Longer battery life than most competitors – 50 hours total
-
Better situational awareness – hear surroundings clearly
-
More stable connection – Bluetooth 5.4 technology
Where to Buy Openfree JR-OE4 in Bangladesh?
Available at JontroBazar.com
-
100% Original Product
-
Best Price Guarantee
-
Nationwide Delivery
What’s in the Box?
- JOYROOM Openfree JR-OE4 Earbuds
- Charging Case
- Type-C Charging Cable
- User Manual
Usage Tips
- Clean earbuds regularly with dry cloth
- Fully charge before first use
- Use touch controls to play/pause music
- Keep firmware updated for best performance
Frequently Asked Questions
Q1: Are these earbuds good for running?
A: Yes, the open-ear design and secure fit make them ideal for running and workouts.
Q2: How is the sound quality compared to in-ear buds?
A: While not as isolating, the 16mm drivers deliver surprisingly full sound with good bass.
Q3: Can I use just one earbud at a time?
A: Yes, both earbuds can operate independently in mono mode.
Q4: Do they have noise cancellation?
A: No, the open-ear design is meant to keep you aware of your environment.
Q5: How long does the battery last on a full charge?
A: The earbuds last 12.5 hours, with 50 hours total including the case.
Q6: Are they waterproof?
A: They have IPX4 rating, meaning splash-resistant but not waterproof.
Q7: What devices are compatible?
A: Any Bluetooth-enabled device including smartphones, tablets and laptops.
