Bone Conduction Headphones Wireless Bluetooth Headset Open-Ear Richer Bass HiFi Stereo w/Mic Noise Cancelling Waterproof Earphone Sweatproof for PC/Cell Phones/TV Gym Runing-Gray (Dark Gray) Paradigm Shift A Brilliantly Engineered Sound ExperienceThe

A Brilliantly Engineered Sound ExperienceThe IE 800 S features Sennheiser's patented dual-chamber absorber (D2CA) system

Sensitivity: 115db (front)

All hinges

dual 6mm driver sound system

Bluetooth: v4

Bone Conduction Headphones Wireless Bluetooth Headset Open-Ear Richer Bass HiFi Stereo w/Mic Noise Cancelling Waterproof Earphone Sweatproof for PC/Cell Phones/TV Gym Runing-Gray (Dark Gray) Paradigm Shift A Brilliantly Engineered Sound ExperienceTheBrand: MYSANDY Color: Dark Gray Features: BONE CONDUCTION Bluetooth HEADPHONES: different from traditional earphones by creating mini vibrations, sending sound through the cheekbones directly to the cochlea in your inner ears. This new technology will also help people with Recession Type Hearing Impairment. Helps to avoid hearing loss from ordinary earphones due to long time usage. Best running workout behind ear headphone with speaker and mic.