Maximum saturated sound pressure level:≤110dB+3dB
High-frequency mean:106dB±4dB
Full file gain:25dB±3dB
Frequency response range:300Hz-6000Hz
Equivalent input noise level:≤19dB Total

1. In-ear hearing aid.
2. Have left and right limits. Left blue/beige, right red/ beige, black 4 colors can be selected.
3. Use A10 zinc-air button battery.
4. Suitable for 30dB-100dB mild, moderate, and severe.
5. Super mini-invisible style6,1pcs A10 battery can work 60 Hours.