[OPEN EAR DESIGN & IMPROVED Awareness] - With an over-ear hook and neck strap, truefree F2 headphones provide a secure and comfortable fit, ensuring no discomfort in your ear canals and preventing falls. The integration of open-ear and air conduction technology keeps you connected to your environment, ensuring awareness and keeping you alert while enjoying your music. [Pleasant Sound & Immersive Fun] - Operating 16.2mm bio-compound diaphragm drivers and open sound stage, these headphones provide rich sound details, enhancing your experience during sports activities. With the inclusion of the latest Bluetooth 5.3 technology and a low latency 43ms gaming mode, enjoy an immersive audio and visual experience ️ [Smooth Calls & Directional Sound Transmission] - Improve call clarity with dual microphones, accurately capturing your voice while effectively cancelling ambient noise for an optimal calling experience. With directional sound transmission technology that eliminates noise leakage problems and maintains a targeted audio experience, you can fully immerse yourself in your music or calls without disturbing those around you. [Extended Battery Life & Comfortable Fit] - Give yourself 15 impressive hours of continuous listening on a single charge. The F2 headphones accompany you throughout a week of training or nearly three marathons. With creative color contrast and ergonomic design, made from ideal TPU material and built-in memory steel, the neckband headphones provide a comfortable and stylish wearing experience. [Multipoint Connection & App Control] - Benefit from dual connection function, allowing seamless connection of F2 headset to two devices simultaneously with effortless switching between them. Download the truefree app to enable or disable a multipoint connection and access additional custom settings, such as preset EQs, music and call control, and much more, for a personalized experience. Truefree Écouteurs ouverts F2