Siemens Quality USB Hearing Aid with Charger Medical Ear Apparatus Volume Control Adjustable Tone Deaf Equipment drop Shipping
How long term battery life
Depending on how much you will wear it, the instruction says enough for 100 hours, then charging
The Bluetooth function really works?
Yes, it works, the sound is very clean
Hello I wanted to know if we can use them in the 2 ears left top right thank you
Yes you can use them. One for each ear. We will buy for our father and it works perfectly
Hello, this device is indicated for hearing loss that degree moderate or severe?