What's in the box:

Mini Size Inner Ear Invisible Hearing Device Adjustable Wireless Ears Sound Amplifier Left Right Optional (Standard)

This hearing device is designed for old people or people with hearing problems, suitable for those people who was hearing loss or patients. Low power consumption, high-fidelity material, fine quality chip, invisibility fleshcolor surface will not incongruity in the crowd. User-oriented design make the hearing aids can perfect the ear. You can have a try.

Features:
This heard in hearing device is designed for old people or people with hearing problems, suitable for those people who was hearing loss or patients.
User-oriented design make the hearing device can perfect the ear.
Low power consumption, high-fidelity material, fine quality chip, invisibility fleshcolor body will not incongruity in the crowd.
This affordable hearing device have volume control, can adjust the volume to fit your own needs and preferences.
Powered by 2 * A10 battery, smaller, simpler, more convenient, more powerful and more stable.
Use digit circuit, automatic noise dropping technology, natural HQ sound, provides you a perfectexperience.
Ergonomic design earcanal simulator, will not feel pain even after long time wearing.
Equipped with soft silica gel, there isno harm to your ear.
Pull the upstright backguy, you can open the battery box, easy and convenient.
Equipped with one screwdriver, adjust the sound volume.
Equipped with 3 size earplugs and two black brush, easy using and easy washing.
Also provide better technology in ray of hearing device to reduce electromagnetic interference.

NOTE:
This "whistle" during use is caused by improperly wearing, please adjust the position of the hearing aids to make sure the earplug completely plugs the ear cavity without leaving g-ap.
Or you should change the large earplug.
You need to plug the ear cavity completely to avoids whistle sound.

Specifications:
Name: Hearing Device Kit
Material: silica gel+plastics
Color: fleshcolor
Battery: 1 * A10 battery, 1.4V, 2mAh (included)
The biggest way out: 125 + / - 3 db
The lowest way out: 30 + / - 5 db
The total harmonic distortion wave: 10%
Frequency range: 200-3000 hz
Noise: 32 db
Modern horse: 5
Voltage: 1.5V
Current: 3.5mA
Battery Type: 1 * A10 battery
Item size: 12 * 12 * 18 mm / 0.47 * 0.47 * 0.71in
Item weight: 3g / 0.11ounce
Package size: 100 * 50 * 30mm / 3.94 * 1.97 * 1.18in
Package weight: 46g / 1.62ounce

Packing List:
1 * Hearing Device with Battery
1 * Storage Box
1 * Brush
3 * Earplug(1pcs is install on the hearing device)
1 * Audio Adjusting Bar
1 * Guideline