BONE CONDUCTION HEARING HEADPHONE For different hearing loss users Easy to use, for anyone. 32 Channels WDRC Noise Reduction Reducing noise, making it easier and more comfortable to hear in noisy settings. Bone Conduction Design No in-ear,Free from burden The volume can be adjusted for different situations, to reduce ear pain. Head-Mounted Design Prevent From Losing Running, sports can also wear, don't worry about headphones fall down. Making it a particularly convenient option when you're traveling, working in the office, or even exercising at the gym Bluetooth version:V5.3 Transmission range:15M Battery:230 mAh Working time:6-8 hours (The product printed words depending on the batch, but this does not affect use) Color: As Shown Material: plastic Package Contents: 1 x Bone Conduction Hearing Aids Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.