[Design, Comfortable to Wear] Design style, fits snugly to both ears, lightweight, and firmly fits the ear hook, suitable for long-term wear without causing discomfort to the ears[Wide compatibility] Wireless Bluetooth earphones can easily pair and connect with smartphones without cable restrictions, with stable Bluetooth connection and no delay[Dual Ear Separation Design] Two earphones can be connected to the same phone simultaneously, or two earphones can be used separately for each earphone. You can freely switch between the left and right earbuds without any additional pairing steps or interruptions. Music signal loss or delay[Ergonomic Design&Comfort] Bone conduction Bluetooth earphones, lightweight design, can bring you excellent sports experience whether in the gym or outdoors, suitable for sports purposes such as running and cycling[Keep in touch with the outside world] Listen to music without blocking your ears, allowing you to understand the surrounding situation while listening to music. When you run, ride a bicycle, or drive, you can hear oncoming cars or bells, effectively avoiding some dangerous situations