*The amplifier hearing aid is well made, can reduce noice, with good sound quality. Volume Adjustable & Silicone earplugs in 3 sizes: fit most ears.
*Ultra mini size and lightweight: easy and comfortable to wear.
*Shock and drop resistant, moisture proof and high temperature proof: user-friendly design.
*Made of high quality material, durable and reliable for long time use.
Ma saturated sound pressure level: 1105dB
Full-on acoustic gain: 30dB
Harmonic distortion: 10%
Frequency range: 300 ~ 4000 Hz
Equivalent noise: 40 dB
Voltage: DC 1.5V
Current: 4 mA
Battery: 2 AG3 button battery
Size: 2 2 1.5 cm
1 Hearing aid
2 Button batteries
4 Earbuds
1 English user manual
In original package