Hearing aids are sold through a variety of channels, such as retailers, clinics, audiology networks and other hearing aid centers. For hearing aids purchased from audiology centers, hearing clinics, independent shops, or corporate stores, the end-user price (i.e., the money paid by the customer / patient) usually includes the cost of the device and related professional services (the most common professional services include hearing tests, follow-up visits, fitting services, routine cleaning, maintenance, programming, and earwax removal). This type of end-user price is termed a bundled price. This pricing strategy is typically followed by the aforementioned sellers across the US. Unbundled pricing is another pricing mechanism. Patients / customers may seek different professional services as per their requirements and preferences. Unbundled pricing for hearing aids could therefore lead to a significant change in the end-user price. With premium pricing, customers get additional services, such as insurance, unlimited follow-up visits, lifetime cleaning, battery supplies, and free video consultations. In corporate stores (owned by hearing aid developers), the respective developer determines the end-user prices, while audiology centers are more flexible in providing discounts and bundling services, which they can use to undercut corporate prices.