Bluetooth 5.0. Secure-fit. Sweat proof. HD stereo sound. Quick-pair technology. Secure-fit ear hooks. Stereo sound. Ultra-lightweight design. Music + calls. up to 4 hrs (Actual playtime may vary based on sound volume and audio content). Includes Dual DC charging cable and pouch with carabiner. An American brand. Limited one year warranty. FCC listed CE Listed. RoHS. myhypergear.com. Designed in California USA. Made in China.