What is bone conduction?
"Bone conduction" is a technology that "uses bone as a transmission medium to hear sound".
The principle of bone conduction headphones is that the sound output by the headphones is transmitted through the bones and directly reaches the inner ear , without vibrating the eardrum through the sound to bring the sound.
Advantages of bone conduction headphones
One: Bone conduction headphones will not hurt the ears because of different principles, which is different from ordinary headphones or in-ear headphones.
Second: it will not hinder your connection with the outside world when you usually answer the phone or listen to music.
Whether listening to music or walking down the street, you can hear the outside world! The car horn, the doorbell, and chatting with friends are all fine.

Specification:
Earplug/earmuff material: Silicone
Headphone cable material: PVC
Color: Black
Plug Diameter: 3.5mm
Whether wireless headset: wired headset
Weight: Approx. 18g
With or without microphone: yes
Impedance: 32 (Ω)
Sensitivity: 58 (dB)
Cable length: 1.2 (m)
Speaker diameter: 40 (Φmm)
Frequency Response Range: 20-2000 (Hz)

Package Contents:
1 * Wired bone conduction earphones
1 * Noise Cancelling Earplugs
1 * Instructions for use