Superinvisible Wireless Bone Conduction Headphones Digital Ear Sound Amplifier

If you find it's difficult to hearing very well from others, a hearing aid can help you regain your hearing so you can live the life you are used to. This hearing aid is specially designed for the hearing losing people. Wearing it, you can discover the pleasure of gathering with friends and family, feeling more confident at work and enjoying movies, music and TV programs.

Features:  
Uses a sound pickup unit to receive sound through the intelligent integrated module to drive vibrator vibration. The sound can be directly transmit though the skull to the inner ear.
Full use of the ear structure to design the appearance of the hearing aid, which makes it perfectly fit wearer's ears for a comfortable wear.
Helps to amplify sound with low background noise, you can discover the pleasure of gathering with friends and family, feeling more confident at work and enjoying movies, music and TV programs.
Comes with the wireless design, which is more comfortable and more convenient.
Release your ears to listen the world, you can response to the surrounding situation quickly, far away from dangerous, suitable for many indoor and outdoor activities.
Package included a storage box, which could keep your headphones clean and storage.

Specifications:
Item Type: Bone Conduction Headphones
Color: As Pictures Show
Max Sound Output: 110+5dB
Sound Gain: >30dB
Total Harmonic Wave Distortion:
Frequency Range: 300-4000Hz
Input Noise:
Voltage: DC 1.5V
Current:
Package Size: 9.0 x 6.5 x 2.5cm / 3.5 x 2.6 x 1.0inch
Package Weight: 37g

Usage:
Open the cartridge cover, put the battery in correct direction. Zinc Air Battery is best choice and has longer life.
1. Before using switch the volume to the minimum position.
2. Put the ear hook on your ear, plug in the ear plug tightly.
3. Turn on the power, and adjust the sound volume to get clear sound.
4. If you hear the whistling sound, please check whether you have plugged in the ear plug tightly. If it can't be pluged tightly, please change the other size plug.
5. When you don't use it, please open the battery artridge or take out the battery. Otherwise it will continue to work.
(Note: Make sure the volume adjuster is at the minimum position. Otherwise the instant sound will make you uncomfortable.)

Package List:
1 x Bone Conduction Headphones
2 x Button Battery
1 x Little Brush
4 x Replaceable Earplug ( Different Size )
1 x Little Screwdriver
1 x User Manual
1 x Storage Box

Note:
If the squeak is happening, please switch off the headphones first, then adjust the both volume to minimum, switch on the headphone again, and adjust the volume higher to appropriate again.