Enjoy Music Even You SweatWith the development of science and technology, Otium wireless earbuds could be protected well with IPX7 even when you are running, jogging, hiking and biking! Stereo High Sound QualityAccording to the market research and technical efforts, Otium bluetooth headphones have upgraded the sound quality, providing a stereo sound with superb bass sound and mid. Let you immerse yourself in the music world! Find The Most Comfortable AngleErgonomically eartip design, arc ear hanger and three different sizes of earplugs, Otium wireless headphones bring you a comfortable wearing experience, help you find the most suitable angle! *Attention: <1> Please use the standard 5V/1A charging plug to charge the headphones.<2> Please don't charge the headphone in your car or use fast charger, otherwise the headphone may broken because of the unstable voltage or excessive current. <3> Please notice that the charging voltage must be not exceed 5.5V and the charging current must not exceed 3A. Warranty:Every Otium Headphones has 1-Year Manufacturer's Warranty and 60 days no-questions-asked money back & return policy. Specifications: Bluetooth Standard: V4.1Waterproof Rating: IPX7Operating Range: About 10m (30ft)Standby Time: 240hrsCharging Time: 1.5hrsTalk /Playing Time: 8-9hrsSound: HD Sound and Richer BassPackage Contents: Otium Headphone x 1Regular Ear Tips(S, M, L) x 3 PairsCord clip x 1Carrying Case x 1Charging Cable x 1