Solar Ear Hearing Aid HD-48

The Solar Ear HD-48 is an optimized DSP hearing aid equipped with a volume control potentiometer, low battery warning, 12 bands frequency shaping, and feedback cancellation. The hearing aid includes a P trimmer to control for output sound level and a H trimmer to adjust the amount of background noise reduction.The HD-48 can store up to four listening programs that can be accessed with the memory switch.

The HD-48 can be powered with Solar Ear’s rechargeable #13 Ni-Mh hearing aid batteries or traditional zinc air batteries. The rechargeable batteries are recharged with the Solar Ear Hearing Aid Battery Charger. The Solar Ear Haring Aid Battery Charger can be charged via the sun, household light, or a Nokia cell phone charger. The rechargeable batteries and solar battery charger can also be used with 95% of all Behind-The-Ear hearing aids on the market today.^{Interview with representative}

Transportation/Storage Temperature Range: –20-60° Celsius, 85% RH;

Pressure Range: 500-1100 hPa

Cleaning method: Soft, dry cloth and a small brush

Battery charging time: 14-16 hours

The listening programs must be set by a hearing healthcare professional or the manufacturer. Troubleshooting guidance is available in the user manual. All Solar Ear hearing aids and accessories come with a 2 year warranty.^{Interview with representative}

The rechargeable battery can withstand at least 500 cycles. The lifetime of the hearing aid is approximately five years.^{Interview with representative}

Results from a clinical trial of a Solar Ear BTE hearing aid with 21 participants revealed that the hearing aid offers substantial benefit to the hearing impaired with a severe predominantly sensorineural hearing impairment (i.e >60 dB at 2 kHz) and gives amplification in the desired frequency range that is aligned with National Acoustic Laboratories (NAL) recommendations.

Patients with middle ear infection should not wear the hearing aid until cured unless otherwise instructed.