Digital ITE Hearing Aids Rechargeable Noise Cancelling Adjustable Volume Adults
£59.89
If the hearing aid have the Whistle, you did not use it in right way, here is the step Hearing aid charging current:≦30mA. 3 put into the ear,turn on the hearing aid. 2 turn down the hearing aid. Input noise: ≦ 29DB±3.
