Yesido YSP26 ENC Noise Reduction Ear-hook Open OWS Bluetooth Earphone, with LCD Screen Features 1. High-performance ultra-linear driver unit with titanium diaphragm speaker delivers exceptional sound quality, comfortable and effortless listening, allowing you to enjoy HiFi-quality sound. 2. Bluetooth 5.4 for lower latency, more stable signal, directional narrow-band sound transmission, and high privacy protection. 4. Built-in flexible memory titanium alloy wire adapts to different ear shapes, providing a secure and comfortable fit, as if custom-made. 5. Open acoustic design restores a wide, natural sound field, allowing you to enjoy music and feel safe at the same time. 6. Ultra-long battery life: 7-8 hours of playback on a single full charge, and approximately 32 hours of continuous music playback with the charging case. 7. Versatile LCD display with features including theme switching, volume control, headphone search, and audio EQ. Specifications 1. Material: ABS+UV 2. Chipset: JL7003D4 3. Bluetooth Version: V5.4 4. Range: 10m 5. Speaker: 14.2mmPU+Titanium diaphragm 6. Frequency range: 2.402-2.480GHz 7. Battery capacity: 70mAh (earphones), 500mAh (charging case) 8. Charging current: DC 5V0.1-0.5A (max) 9. Charging time: Approximately 2 hours (earphones), approximately 3 hours (charging case), can be charged three times 10. Playback time: Approximately 7 hours (single charge at 70% volume)