ReSound Key 4 ITC Hearing Aids

ReSound Key 4 ITC is a custom-made In-the-Canal (ITC) hearing aid designed to provide clear, natural hearing for individuals with moderate to profound hearing loss. Built on ReSound's Organic Hearing™ philosophy, it combines intelligent sound processing with a discreet custom-fit design, offering excellent comfort and reliable performance throughout the day. It supports MP, HP, and UP power levels to suit a wide range of hearing needs.

Featuring 12 intelligent processing channels, the Key 4 ITC automatically adapts to changing listening environments, improving speech understanding while reducing background noise. Advanced technologies including Natural Directionality II, DFS Ultra II feedback cancellation, Noise Tracker II, Soft Switching, and Environmental Classifier help deliver balanced, natural sound in quiet and challenging listening situations.

Powered by a size 312 zinc-air battery, the hearing aid provides reliable multi-day performance with convenient battery replacement. Its custom ITC shell sits comfortably inside the ear canal, providing a discreet appearance while offering powerful amplification for moderate to profound hearing loss.

Bluetooth® Low Energy connectivity enables compatibility with ReSound wireless accessories and supported smartphones. Through the ReSound Smart 3D™ App, users can adjust volume, change listening programs, personalize hearing settings, and receive remote fine-tuning from their hearing care professional.

Built with durable components and advanced feedback management, the ReSound Key 4 ITC delivers dependable hearing performance while maintaining comfort, speech clarity, and discreet styling for everyday use.