Open-Ear Design: Enjoy long time comfort with our lightweight, secure fit, open ear headphone for all-day listening without hearing impairment. Perfect for outdoor and indoor sports like running, cycling, hiking, working,etc. Safety & Comfort: Bluetooth 5.3 open ear headset allows you to enjoy your favorite music while keep aware of your surroundings, helping avoid potential dangers. Aviation lightweight material, 29g ultra light body freely exercises without ear burden. High strength memory titanium alloy neck strap and food grade silicone pad, 360°bent without deformation, skin-friendly and durable. Sweat-resistant enough for daily exercise, enjoy free workout time. Perfect for outdoor and indoor sports like running, cycling, hiking, working,etc. Long Use Life: 10 continuous hours of music, calls, and podcasts. Standby time up to 240 hours. You can enjoy music comfortably at any time. Why take your music out of the water? Well, don't! Enjoy your favorite tunes while swimming with the IP68 underwater headphones. IP68 waterproof level is completely waterproof and sweat resistant, far surpasses other IP55 earphones. Easily meet swimming and other workout needs. Applicable scenarios: Water sports: swimming, diving, surfing Indoor sports: gym stretching, yoga, rope skipping Outdoor sports: running, trekking, cycling, hiking, walking, etc. Other uses: used while driving a car, office working or noisy factories such as electronics workshop and breweries Gift Idea: A dignified gift for husband, wife, friends, parents or kids...