Bone Conduction Earphones, Bluetooth, Wireless Earphones, With Microphone, Bone Conduction Wireless Headphones, Wireless Bluetooth Earphones, Ear Conduction Headphones, Open Ears, Bone Conduction Headphones, Non-Blocking Earphones, 0.9 oz (25 g), Ultra Lightweight, Connects to 2 Devices, Waterproof, Type-C Rapid Charging, 8 Hours of Use, 180 Days Standby Time, Multi-functional, Sports, Meetings, Running, Gaming, Training, Cycling, Hands-Free Calls, Lightening, Japanese Instruction Manual (English Language Not Guaranteed), Gift, Black