สายเคเบิลข้อมูล USB x1 Hearing aids for the elderly and those with deafness problems hearing aid Amplifier model Z C-06 loud sound rechargeable hearing aid. hearing aids for the elderly Small size easy to carry Easy to use no batteries required Fully charged for 5-10 days with headphones for wearing both ears Not lost because there is a clip attached to the pocket of the shirt. meet the usage Headphone cable is quite durable. Product details feature: 1.Maximum sound output:130±5dB 2. Sound amplification rate:>= 45dB±5dB 3.Total harmonic distortion:≤5% 4.Frequency range:450~3500 Hz 5. Input noise: ≤30 dB 6. Voltage:dc1.4V 7. Current:<= 1.5mA 8. Designed for Rechargeable 9. Fully charged in 2.5 hours. 10. Work about 60 hours 11. Battery capacity 120mAh