Long Lasting battery life: The Bluetooth earphones is able to provide up to 5 hours of listening time plus 40 hours with a high capacity charging case. The charging case takes only 1.5 hours to 2 hours via Type-C quick charge. This brings you the most convenient charging solution when you are on the go, never need to worry about charging issues.
Soft Silicone Fins: Especially design for sports, never drop off your wireless earbuds from now! Silicone fins design will keep you away from pain after a long time of wearing and give you an impressive comfortable feeling. Replaceable silicone fins can be easily taken out and change to normal ear fins provided. Extra ear caps in different sizes and ear fins are provided for your customized fit, never worry about fitting problems.
Extraordinary Music Performance: The Bluetooth earbuds will help you enjoy high standard, immersive music experience. Impressive deep bass sound to best support your music listening. Stereo sound let you feel like the music is performed right next to you. With the advanced acoustic driver, the earbuds can avoid sound distortion even at the highest volume.
IPX8 Waterproof: VANKYO S400 sports earbuds are made in waterproof material and design rated IPX8. It can be used in all sweat conditions, work out, exercise, running, even swim for a short time