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Black open-ear wireless earbuds with ear hooks and charging case

No Sew

No Sew JR-OE4 Open-Ear Bluetooth 5.4 Headphones Black

SKU CH-2NG1-H09J0

Open-ear Bluetooth 5.4 headphones with 12-hour battery life, 16 mm drivers and IPX4 sweat resistance

  • TypeOn-Ear
  • ColorBlack
  • THDOpen Ear
  • ConnectorNo Jack
  • Ear Couplingopen_ear
  • Weight0.141 kilograms
  • Ultra-light 10 g ear hooks for pressure-free comfort
  • Open-ear design keeps you aware of surroundings during workouts
  • Bluetooth 5.4 with dual-channel transmission for stable low-latency audio
  • 16 mm dynamic drivers cut 80 % sound leakage for private listening
  • Charging case provides 50 hours total playback with LED battery display

Open-Ear Design for Active Listening

These open-ear headphones use Bluetooth 5.4 to deliver audio while keeping your ears unblocked. Each earbud weighs just 10g with a non-invasive hook structure for pressure-free comfort during extended wear. They are built for runners, cyclists and commuters who need to stay aware of their surroundings while listening to music or taking calls.

IPX4 Resistance and All-Day Battery

The IPX4 rating protects the earbuds against sweat and rain during workouts. A single charge provides 12.5 hours of playback, while the charging case extends total runtime to 50 hours. An LED digital display on the case shows the remaining battery percentage so you can monitor power at a glance.

Touch Controls and Directional Audio

Smart touch controls on the earbuds handle volume, playback and calls without reaching for your phone. The 16mm dynamic drivers use a proprietary algorithm to enhance bass and a directional sound field that reduces sound leakage by 80% for privacy in public spaces. Bluetooth 5.4 dual-channel transmission ensures a stable, low-latency connection.

Highlights

  • Ultra-light 10 g ear hooks for pressure-free comfort
  • Open-ear design keeps you aware of surroundings during workouts
  • Bluetooth 5.4 with dual-channel transmission for stable low-latency audio
  • 16 mm dynamic drivers cut 80 % sound leakage for private listening
  • Charging case provides 50 hours total playback with LED battery display

Specifications

BrandJOYROOM
ModelJR-OE4
TypeOn-Ear
ColorBlack
THDOpen Ear
ConnectorNo Jack
Ear Couplingopen_ear
Weight0.141 kilograms
Noise Cancellingnone
Wireless TypeBluetooth
Battery12 hours
Operating Time12 hours
Charge Time180 minutes
Featuresnone, 5.4, 12 hours, Touch Control, touch, Wireless, Open Ear, dynamic_driver

Questions about this item

How do I pair the JR-OE4 earbuds via Bluetooth 5.4 for the first time?

Remove both earbuds from the charging case; they auto-pair with each other and enter pairing mode. Select "JR-OE4" on your phone's Bluetooth menu to connect.

What battery degradation should I expect after a year of daily 12-hour use?

The 12.5-hour single-charge rating and 50-hour case total will gradually reduce; plan to replace the earbuds when runtime no longer covers your typical session.

At what volume level does the 80% sound-leakage reduction stop being effective?

Directional audio keeps leakage minimal at moderate volumes; at maximum volume some sound escapes, so lower the level in quiet offices or libraries.

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