[2709] 1pc In The Ear Hear Sound Amplifier Invisible Adjustable Tone Hearing Aids

Features:

• Brand new and high quality hearing aid sound amplifier.
• Super mini size and light weight, not easily to be seen.
• Adjust volume to the minimum before wearing.
• Increase volume gradually to avoid sudden increase in sound.
• Convenient for watching movie, enjoying the drama, attending meeting, or having class, it could help you hear the sound clearly and loudly.

Specification:

• 1. Max sound output: 110±5dB
• 2. Sound gain: ≥30dB
• 3. Total harmonic wave distortion: ≤10%
• 4. Frequency range: 300-4000Hz
• 5. Input noise: ≤40dB
• 6. Voltage: DC1.5V
• 7. Current: ≤4mA

Package Included:

• 1 x Hearing Aids
• 2 x AG3 Button Cells
• 1 x Instruction Manual
• 1 x Case
• 4 x Units of earplug of different size