Bluetooth 5.0 with 7 hours Battery - Cutting edge streaming quality with near lossless playback and reduced latency. 7 hours of uninterrupted music. Qualcomm cVc technology with built-in mic - Uses packet loss and bit error concealment to suppress ambient noise and offer the clearest call quality. Edifier Connect - Link up to app, and get access to equalizer settings, battery life, pairing options, voice assistant and more. IPX4 Splashproof Rating - Advanced nano-coating creates a water repellent coating that stays dry even during heavy rainfall. Lightweight neckband design - Available in several colors. Neckband electronics allow for lighter earphones with easy to reach controls.