AXON F-28 Sound Amplifier Deaf Hearing Aids(Blue White)

1. Material: ABS 2. Sound output : 110dB 3. Sound gain: 55dB 4. Input noise: less than or equal to 40 dB 5. Battery: 1 x AA battery (without battery) 6. Working voltage: DC1.5V 7. Current: less than or equal to 4 mA 8. Frequency range: 300-4000 hz 9. Super small size, light weight, not easy to find 10. Adjust the volume to a lower volume before wearing and gradually increase the volume to avoid a sudden increase in volume 11. Easy access to movies, plays, meetings, or classes can help you hear clearly and loudly 12. Product size: 6.6 x 4.3 x 1.6cm 13. Net weight: 29 grams Package includes: -1 x hearing aid -1 x user manual -1 x box -3 x earplugs (different sizes)