OUTSTANDING SOUND PERFORMANCE: High performance driver with armature coil provide richer and fuller sound for a more complete auditory experience. In-ear noise-isolating ear tips make a sealed environment to reduce most of noise.SECURE FIT FOR SPORTS: X22 Black Bluetooth headphones are primarily designed for everyday use. Ergonomically crafted for comfort, the headphones is perfect for long hours of listening. Comes with 3 different soft silicone ear tips sizes and 4 types of secure hooks for the most comfortable fit.WIDE COMPATIBILITY: High definition Bluetooth4.1+EDR (Enhance Data Rate) consumes low power with minimal latency. Faster pairing with the most of Bluetooth enabled devices and deliver more stable signal. Connect with 2 devices at the same time, will not miss any phones calls and message.IPX6 SWEATPROOF & LIGHTWEIGHT & MAGNETIC: IPX6 efficiently protects headphones from sweat and light rain, which prolongs the earphones' life time. Just 17g weigh will feel as if they aren`t there. Built-in magnet can attach 2 earphones together which is convenient to carry.UP TO 8 Hrs LONG-LASTING BATTERY LIFE: X22 Black Bluetooth headphones come with newest 150mAh rechargeable battery that supplies longer battery life, provides at least 8 hours of talk / playing time and 180 hours standby time. Use them for listening and calling to the end no matter running, jogging, sports, reading or workout.