Label:Yes
Frequency Response: 450-3400Hz
Equivalent Input Noise:<=32dB 
Size: 5*4cm(1.97*1.57in)
Working Current: ≤1.2mA
Working Voltage: DC 1.2V
Power Supply: USB Recharging
Package Includes: 1pc Digital Hearing Aid
Color: Silver,Blue
Total Harmonic Distortion:<= 10%
Max Saturation Acoustic Output: 129+/- 3dB 
Material: ABS
Full Acoustic Gain: >= 40dB+/- 5dB
1. This product is designed for 40-60 years old elder people, suitable for those people who was hearing loss.
2. Wearing the hearing aid means rediscovering the pleasure of gathering with friends and family . feeling more confident at work ,and enjoying movies ,music and TV programs.
3. This product is rechargable style, you can save the battery cost, you can charger on the night,then you can use normally during in the day.
4. This hearing aids have volume control, it can adjust the volume to fit your own needs, and it will comfortable to wear for a long time, and also provide better technology in ray of hearing aids, to reduce electromagnetic interference.
5. Do not worry about to hearing others no longer, and get along with your family more harmoniously,Best gifts for your family,Let them feel your care and love.