Peace be upon you. I have a Phonak brand hearing aid, almost new, that did not suit the child. Swiss-made for hearing loss. Used for one year, the hearing aid is in good and excellent condition. I want to sell it. Its type is: Naida M30.SP. Number of channels: 8 auditory channels. Bluetooth specifications: battery + Bluetooth system for connecting to a mobile phone for calls, audio, and more + high and low volume control, as well as noise control.