Bone Conduction Earphones Bone Conduction Earphones Continuously Usable Bluetooth Bone Conduction Headphones Bluetooth Lightweight Design Bone

[About clocks that synchronize time via radio waves] The function of clocks that synchronize time via radio waves only works in the Japanese area. Please be careful. As soon as you turn on the power, it goes into pairing mode, so you can connect via Bluetooth right away, making it easy to use even for beginners. Bone conduction earphones have an open-ear design that does not enter your ears, so you won't feel any pressure in your ears, and you won't feel tired even if you wear them for a long time, so you can use them comfortably all day long. bone conduction earphones