This item Bone Conduction Earphones, Wireless, Bluetooth 5.3 Earphones, Instant Connection, 12 Hours of Continuous Use, No Blocking Ears, Sports, Running, IPX7 Waterproof, Type-C Rapid Charging, Over-Ear Conduction Headset, Calls, Noise Canceling, Remote Meetings, Work from Home, Gift, Japanese Instruction Manual Included (English Language Not Guaranteed)