GROUNDBREAKING AESTHETIC DESIGN. A minimalist spherical shape gives the earbuds a stylish look while keeping the weight to minimum, just 5.6 each earbud for better comfort INTERCHANGEABLE EARBUDS. The Freeclip is interchangeable, with self-adaptive left-right audio channels, meaning you can place the bud in the ear you want with no worry of left or right OPEN-EAR LISTENING. Thanks to the open-ear design, You can immerse yourself in music or calls, while staying aware of changes in ambient sounds, whether in an office or doing exercise. AI CRYSTAL-CLEAR CALL: Enjoy crystal-clear calls with a delicate microphone system that works in tandem with a multi-channel deep neural network (DNN) algorithm to effectively remove noises LONG BATTERY LIFE: Listen for up to 8 hours when using the earphones alone on a single charge, or up to 36 hours with a fully charged case. A 10-min charge sustains up to 3 hours of listening