Pulseaudio Sports Noise Cancelling Wireless Bluetooth Headphones with Advanced Electro Acoustic Technology - High-grade Silicone materials - Sweat proof rating of IPX4 - Midnight Black APT-X, ADVANCED ELECTRO ACOUSTIC TECHNOLOGY that provides high quality sound and superb bass for the best auditory experience while doing your favorite activities NEW FOAM EAR TIPS. Ergonomic design along with the silicone ear gels and stabilizers offer the best fit for bluetooth earbuds on the market today BLUETOOTH VERSON 4.1 AND NFC offers the latest in wireless technology providing no call drops and distortions. Up to 8 hours of playing time and backward compatible with 99% of devices including Apple products CVC 6.0 NOISE CANCELLING blocks out unwanted noise for better voice recognition through the microphone. Easy access in-line buttons makes raising/lowering volume, answering calls and changing tracks a piece of cake IPX4 WATERPROOF RATING with sweatproof material make these headphones easily the best in-ear wireless bluetooth earbuds for the gym, crossfit, biking, hiking, running or anyone with an active lifestyle How highly lightweight, portable and comfortable they are. So comfortable that you forget you&#039;re wearing them The rich, crystal clear HI-FI sound. So rich and clear sound that you think you&#039;re sitting in a live concert! The slim and flexible cord along with its intuitive controls make these headphones an absolute gem to use! The joy of performing your favorite activities hassle free of wire