[Comfortable Fit & Enhanced Awareness] - The Truefree O1 headphones offer a worry-free fit with the over-ear hooks, eliminating concerns about small ear canals, long-time wearing discomfort, and frequent falling out. The open-ear design allows you to stay connected to your surroundings. Whether navigating bustling streets or engaging in outdoor activities, you will never miss a precious moment and remain alert in noisy environments. [Immersive Sound & Powerful Bass] - Enjoy an exceptional audio experience with the Truefree O1 earbuds equipped with impressive 16.2mm drivers. The large speakers create a spacious soundstage, revealing intricate details and faithfully reproducing the original sound. Coupled with an advanced bass enhancement algorithm, these earbuds deliver a delightful and immersive sound, accentuated by deep and powerful bass. ️ [Four Microphone & Directional Sound Transmission] - With four microphones and advanced ENC noise cancellation technology, the earbuds effectively filter environmental noise and deliver crystal-clear voice during phone calls. Adopt innovative directional sound transmission technology to eliminate the sound leakage issue and ensure that you can fully immerse yourself in your music, podcasts, or calls without disturbing those around you. [Extended Listening Time & Game Mode] - Up to 10 hours of listening time on a single charge with the earphones, and conveniently recharge them with the portable charging case for a total of 45 hours. Whether doing sports, commuting, or working, these earphones are the perfect companion. Freely enter and exit game mode with the left earbud. The earphones deliver highly synchronized sound and images to optimize your game experience. [Advanced Bluetooth Technology & Broad Compatibility] - Utilize the latest chipset with Bluetooth 5.3 to provide a stable connection and effective transmission with low latency and consumption. It ensures a seamless connection between single and twin modes and delivers highly responsive audio. The broad compatibility supports working with most Bluetooth-enabled devices with version 4.0 and above, allowing you to enjoy your audio wirelessly without any limitations. truefree O1 Wireless Earbuds