High Fidelity Stereo Sound and CVC 8.0 Noise Cancelling: I09 wireless earbuds adopt DSR lossless HD rendering technology and CVC 8.0 noise cancelling technology, which produces incredible stereo sound quality with crystal crisp treble. Enjoy your music everywhere even in a loud environment. The built-in high-quality microphone of the wireless headphones can provide you with clear call experience.140-Hour Playing Time and Portable Charging Case: The wireless headphones bluetooth can play for 6hrs on a single charge, the charging case can recharge the bluetooth earphones about 23 times, provide extra 140hrs playback. With USB-C tech, it only takes 1.5hr every full charge for the case. Ideal for everyday sport, workout, travel, etc.Latest Bluetooth 5.3 Technology and Dual LED Display: True wireless earbuds Bluetooth 5.3 are equipped with the most advanced Bluetooth 5.3 chip, which provides more stable connection(15m), faster paring(just need 2 seconds ) and universal compatibility. Rid of cord, enjoy true wireless. With the individual LED display on the case can help check the remaining power of the wireless bluetooth earbuds and charging case at any time.One Step Pairing and Smart Touch Control: Just pick up 2 wireless bluetooth headphones from the charging box, they will connect with each other and connect to the last-paired device automatically. With the high-tech touch screen, you can answer calls,hang up, play / pause music, adjust volume, switch songs and activate siri with just a touch of your bluetooth earbuds wireless.IP7 Waterproof: Our wireless sport earbuds are made of high quality waterproof materials, multi-process design headphone body, high specification waterproof test, bluetooth headset can effectively protect the internal components from water, rain and sweat. Ideal for cycling, running, fitness, skiing, travelling, hiking, water sports, etc.