Bluetooth 5.3 + EDR Technology: Bluetooth Earphones, Wireless Earphones, Hi-Fi High Sound Quality, Low Latency, Connection When Open Lid, LED Display Display, Blue Earphones, Up to 40 Hours Music Playback, Type-C Rapid Charging, AAC/SBC Compatible, Bluetooth Earphones, Multi-functional Touch Easy Operation, Japanese Voice Guidance, Comfortable Wearing, Bluetooth Earphones, Bluetooth Automatic Pairing, Hands-Free Calling, Built-in Microphone, One Ear/Both Ear Left and right separated IPX7 Waterproof, Small, Lightweight, Suitable for iPhone/Android, Running, Gaming, Commuting to Work or School, Work from Home, Web Meetings, Zoom, Sports, Japanese Instruction Manual Included (English Language Not Guaranteed) (Black)