【Patented Open-Ear Design】Innovative open-ear design promotes healthy listening and outdoor safety, allowing ambient sound awareness while enjoying audio 【Crystal Clear Communication】Engineered specifically for high-definition communication with dual-mic ENC noise reduction for clear, uninterrupted calls 【360° Free Bending】Designed with a flexible, soft wrap-around structure, these headphones offer unbeatable durability. Whether you're bending, stretching, or twisting the headphones, they are built to withstand wear and tear 【Durable Water Resistance】IPX5-rated water and sweat resistance ensures reliability during workouts or in light rain 【Lightweight Comfort】Weighing only 26.3 grams, these earphones offer comfortable, all-day wear without fatigue Specifications: Bluetooth solution: JIELI 7006F4 V5.3 Connection distance: ≈10 meters Battery capacity: 180mAh Play time: ≈17 hours (80% volume) Talk time: ≈15 hours (80% volume) Charging time: ≈50 minutes Product weight: 26.3 grams Product material: ABS+PC Product size: 128.1*48.9mm Certificate: CE/ROHS/FCC/MSDS