Acer OHR540 Hanging Ear Open-Ear TWS Wireless Bluetooth 5.4 Earbuds Spatial Audio ENC Noise Cancelling Sports Headphones with 20H Battery & LED Display

🌟 Key Features🪶 Ergonomic Open-Ear Design for All-Day Comfort: Adopting a non-in-ear design with liquid silicone and a high-elasticity nickel-titanium alloy wire. After over 20,000 comfort tests, it achieved 99% stability improvement and 96% improved comfort. It liberates both ears without blocking the ear canal, ensuring a breathable, pressure-free fit.🎧 Panoramic Spatial Audio & ACS Dynamic Enhancement: Equipped with a polymer diaphragm and dual-unit composite structure. The spherical phantom engine provides comprehensive angle coverage in 3D space. Features ACS dynamic energy allocation algorithm, tri-frequency resonance, and low-frequency heartbeat enhancement technology to deliver clear highs, beautiful mids, and powerful lows.🗣️ ENC Multi-Microphone Noise Reduction & No Sound Leakage: Features dual-effect directional transmission technology that accurately calibrates sound direction. It effectively reduces sound leakage by 89% environmental noise reduction and improves call clarity by 86%, ensuring crystal-clear conversations without disturbing others.⚡ Advanced Bluetooth 5.4 & Flashing Response: Built with a new generation of high-end wireless chips. It provides stable, anti-interference connections with low power consumption. Compared to previous versions, it offers +136% improved anti-interference capability, +89% improved transmission speed, and +79% sound quality analysis improvement.🔋 20H Long Standby & LED Power Display: Equipped with a 400mAh charging case. Enjoy up to 5 hours of single standby time and 20 hours of total standby time (charging time is about 2 hours). The charging case features a clear LED battery level display, allowing for predictable standby time.👆 Simple Touch Control: Gesture sliding, touch freely. Easy operation without taking out your phone:Answer/Hang up: Click on any earbudPause/Play: Click on any earbudPrevious Song: Three hits LNext Song: Three hits RVolume Increase: Double click LVolume Down: Double click R🏃 Stable & Secure Fit for Sports: The ergonomic hanging ear design ensures the earbuds stay securely in place during intense workouts. Gently twist for easy wear and a secure fit, perfect for running, cycling, and outdoor activities.📝 Product SpecificationsProduct Model: OHR540Wireless Version: V5.4Wearing Method: Hanging Ear Style (Open-Ear / Non-In-Ear)Battery Capacity: 400mAh (Charging Case)Standby Time: About 5H (Single) / 20H (Total with Charging Case)Charging Time: About 2HDistance: 10m (393.7inch)Frequency Response: 20Hz-20KHzAudio Decoder: SBC / AACSupport Agreement: HFP / HSP / A2DPEarphone Voltage Range: DC 3.3V-4.2VProduct Material: Silicone + PlasticCharging Interface: Type-C