Mini Digital Hearing Aid Hearing Amplifiers For Deafness ITE Volume Control In-Ear Deaf Hearing Aid
Note:The hearing aids come with different size earplugs,please choose the correct size earplugsto make it wears comfortable and avoid whistler.If noise, it is working, not any defective, just operate as below:Adjust volume to Min----Put into your ear---Stuffed tightly----Adjust volume again----OK Features: 1.Max sound out put:111+/- 5dB 2.Sound gain:>= 30dB+/- 5dB 3.Total harmonic wave distortion:<= 5% 4.Frequency range: F1≤200Hz, F2≥5000Hz5.Input Noise:<=28dB 6.Voltage:d.c.1.5V 7.Current:<=1.2mA8. Full charing in 2 3 hours, working more than 30 hours9. The 300mAh recharging box for 3 times recharging to extend hearing amplifiers with 90 hours working.10. The recharging box with power capacity LED displayPacking List:Hear Aidsx1PairEar Plugx3PairUSB Cablex1