OWS Earphones, Wireless Earphones, Ear Cuff Type, Bone Conduction Earphones, Air Conduction Earphones, Open Earphones, Prevents Fatigue Even for Long Times, Sound Leakage Suppression, High Security for Hearing Ambient Sound, Built-in Microphone, Bluetooth 5.3+EDR Technology, Hi-Fi Stereo, AAC/SBC Compatible, Physical Buttons, Numeric LED Display, Type-C Rapid Charging, Super Fit, Zero Pressure, Automatic Pairing, Instantaneous Connection: 3 in one ear 0.03 oz (8 g), Ultra Lightweight, Up to 56 Hours of Playback, Compatible with IOS/Android, Business, Music, Study, Commute, School, Work, Games, Sports, Web Conferences, Zoom Calls, Japanese Audio Guide, Japanese Instruction Manual (Black)