• 【Open-Ear Design】The JOYROOM JR-OE4 features an innovative open-ear design, allowing you to stay aware of your surroundings while enjoying your audio
• 【Long Battery Life】Enjoy up to 12.5 hours of playtime at 50% volume, extendable to 50 hours with the charging case for all-day listening
• 【Advanced Bluetooth 5.4】With the latest Bluetooth 5.4 technology, experience stable connections and seamless audio transmission up to 10 meters
• 【High-Quality Audio】Featuring AAC and SBC audio codecs, along with a 16mm driver, these earbuds deliver crisp and clear sound across a wide 20Hz-20KHz frequency range
• 【IPX4 Water Resistance】Protected against splashes and sweat with an IPX4 rating, making them suitable for workouts and outdoor activities
• 【Quick Charging】The earbuds fully charge in about 2 hours, ensuring you're always ready for your next listening session

Specifications:

• Bluetooth Version: 5.4
• Audio Codecs: AAC, SBC
• Communication Range: 10 meters
• Water Resistance: IPX4
• Playtime: 12.5 hours (50% volume), 50 hours with charging case
• Battery Capacity: 80mAh (earbuds), 800mAh (charging case)
• Charging Time: Approximately 2 hours
• Charging Input: 5V 1A
• Charging Port: Type-C
• Frequency Response: 20Hz-20KHz
• Maximum Output Power: 20mW
• Speaker Impedance: 16Ω
• Driver Size: 16mm
• Dimensions: 88.7 x 66.5 x 32mm
• Material: ABS+PC
• Weight: Approximately 78.8g (earbuds about 10g each)