Silicone removable and replaceable ear hooks for sports: The wireless sports earplugs are designed with ergonomic flexible and soft ear hooks and silicone ear caps to ensure that your headphones fit your ears comfortably and eliminate noise. It will not fall off when running or exercising, and will not feel tired and painful for a long time when wearing it. Designed for sports and other outdoor activities. $ Bluetooth V5.1 technology: Compared with Bluetooth 5.0 earbuds, 5.1 wireless earbuds provide you with an unparalleled audio experience with faster transmission speed, stronger connection stability and longer Bluetooth range. You will experience clearer and smoother music playback and dialogue than ever before, without worrying about signal loss or music loss. $ High-quality deep bass stereo and CVC 8.0 noise reduction: With a 10mm dynamic driver, you can provide true, powerful stereo bass and loud sound even in a noisy environment. Combined with CVC 8.0 noise reduction technology, it further enhances the bass and provides powerful and realistic stereo sound quality, with no distortion of the bass and clearer treble, providing a clear music and call experience even in a noisy environment. $ 30 hours of play time and one-step pairing: Built-in long-lasting battery, wireless earbuds can play 5 hours of music time once fully charged. The charging box can charge the dual sports earphones 6 times, so the earphones with the portable charging box can play music for about 30 hours in dual mode. Just take the Bluetooth headset out of the charging box, turn on the Bluetooth, connect the "power" BE1036, and put it back, the headset will shut down and be charging. $ IPX7 waterproof touch: using advanced touch technology, you can easily play/pause/skip music, answer/hang up/reject calls or activate voice assistants with a single tap. The earphone waterproof earplugs are made of high-quality waterproof materials, multi-process design earphone body, high-standard waterproof test. Note: Please wipe the metal part of the earphone with a dry cloth after exercise to avoid being corroded by sweat.