Bluetooth 5.0 with technology provides faster pairing and stable connection. After opening the bluetooth function, just take out two earbuds or one earbud.They open and connect automatically. Perfectly fits tablets, laptops, iOS and Android phonesStereo sound, crystal clear clarity and deep, resonant bass with finely tuned sound signature also combine CVC 8. Noise Canceling Function 0. You will experience a whole new world of crystal clear phone calls.The wireless earphones are made of ABS and designed in 3 sizes of silicone tips to fit different people, small and light. You won't feel uncomfortable and tired when you're in your ears on stage in the middle.IPX5 waterproof, the earphones are waterproof and sweatproof and can be used comfortably during sports. Excellent ergonomic and lightweight design that gives you the most comfortable experience even if you wear it for a long time.These wireless headphones can not only be used together, but also independently. With the portable charging case, you get over 24 hours of power all day. Never worry about the battery draining when you go out.