Features1. Wraparound mounting ear design: ergonomics, long-wearing, painless skin-friendly material + ergonomically designed ear bones for comfortable and long-lasting wear.2. IPX5 waterproof level, so you no longer worry about rain and sweat, fearless, more free3.Stable transmission: Bluetooth 5.0, signal stability, a new generation of low-power Bluetooth 5.0 chip signals are more stable and faster.4.The 180° rotating earpiece is free to wear a 180° rotating earpiece, which can be freely converted to the left and right ears and the angle of adjustment is no longer restricted.5.The hard-core Bluetooth 5.0 chip rejects the Karton delay built-in high-resolution decoder, allowing the signal to be more powerful and farther away, high-speed transmission, and playing games to watch movies with 0 delays.Specificaties: Bluetooth: V5.0 Working distance: 10 meters Waterproof rating: IPX5 Battery display: support (iOS and most Android phones) Batterij-indicator: Lithium Polymeer Batterij Headphone capacity: 230 mAh Music playback time: about 16 hours (music volume will affect time) Call time: 20 hours （Volume size affects time） Charging time: 1.5 hours Support mode: compatible with all Bluetooth versions Sound: HD voice quality Wearing method: wearing ear hanging Boot automatic matching: supportpackage includes: 1 PC Bluetooth headset 1 PC Micro USB charging cable 1 PC ear-hook