Thank you for viewing! ◆ Instant purchase welcome! ◆ Free shipping! ◆ Anonymous shipping! ＊ We have many other products, so please take a look ♪ #KEI ✨ Instant purchase OK ✨ [Open-ear bone conduction, doesn't block ears & ultra-lightweight design] Our bone conduction earphones are a new type of earphones that transmit sound to the auditory nerves by vibrating the bones instead of the eardrums. This allows you to enjoy music without blocking your ears, and you can spend hours comfortably without ear pain. In particular, it is ideal for "while-using" activities such as running, muscle training, housework, and telework, where you can enjoy music while moving. You can hear the surrounding sounds (car sounds, traffic signals, etc.) clearly without blocking your ears, so you can use them with peace of mind, especially in situations where safety is required. Furthermore, with an ultra-lightweight design of 28g, the lightest in the industry, it provides an exquisite fit that makes you forget you're wearing earphones. The lightweight and clear sound quality, and the feature of being less tiring to listen to, maintain comfort even during long hours of use, so you can enjoy it in any situation. Also has waterproof function. [Automatic connection & up to 10 hours of continuous playback & sports compatible] Once this product is initially registered, it will automatically switch to pairing mode just by turning on the power the next time, and will connect to the device in just 3 seconds. This quick connection is very convenient in a busy daily life, eliminating the need to pair each time. Furthermore, it is equipped with a high-performance battery and can play continuously for up to 10 hours on a full charge. This is ideal for long commutes, travel, walking, running, and other activities. You can enjoy music or make calls while wearing the earphones. In addition, the earphones are equipped with a call microphone, so they also support hands-free calls, allowing you to make calls comfortably even when you are out and about. You can easily perform remote operations such as music playback, pause, and skip with your hands. [Bluetooth 5.4 compatible & Hi-Fi sound quality & AAC compatible] Equipped with the latest Bluetooth 5.4 chip, not only is it low power consumption and can be used for long periods of time, but also the data transfer speed is doubled and the transfer capacity is increased by 8 times. This minimizes sound skipping, sound distortion, and delay.