Edifier Comfo Run Open-Ear Wireless Sports Headphones -White Open-ear design with rotatable hooks ensures a secure, customizable fit for all-day comfort. Directional acoustic technology with a unique acoustic structure minimizes sound leakage and enhances sound quality. Up to 10 hours of playtime per charge, 40 hours with the case. Built-in 2 mics with Al noise cancellation technology ensure your hands-free clear calls. Bluetooth V5.4 for seamless audio streaming and a stable connection. Support multipoint connection, lets you switch between two devices simultaneously. Compatible with EDlFlER ConneX App for additional functions: personalize control settings, multiple sound effects, find your earbuds, and more. IP55 certified for daily active use. Specification Bluetooth® Specification: Bluetooth® Version: V5.4 Effective Range: About 10m Supported Audio Codecs: LDAC, AAC, SBC Battery: Playback Time: About 10 hours (single charge) About 40 hours (with charging case) Battery Capacity: 70mAh (earbuds) 660mAh(Charging case) Charging Port: USB-C Input: 5V ⎓ 200mA (earbuds) 5V ⎓ 1A (charging case) General Features: Frequency Response: 20Hz - 40kHz Output Sound Pressure Level: 90 ± 3 dB(A) IP Rating: IP55 Size & Weight: Weight: 9.4 ± 1g (Each earbuds) 69 ± 1g(Charging case)