Abstract: Aspects describe a nozzle including a first flexible portion and a second rigid portion. The rigid portion is less flexible than the flexible portion. When positioned in a user's ear, the flexible portion extends a section of the earbud housing towards an ear canal of a user and the rigid portion couples a removable sealing structure to the earbud housing. In aspects, the flexible portion provides comfort by allowing a sealing structure to flex and accommodate a wearer's ear and the rigid portion provides structure for the feedback microphone to be placed close to the user's ear canal for ANR.

Abstract: A system is provide for effectively managing lease transactions in a comprehensive manner. Data is generated, processed, and stored at the lowest possible logical level in order to maximize the flexibility of a user to conduct processing at the asset, billing schedule, lease, account owner, master agreement, customer, or program level. Using a fully normalized data design, similar characteristics are treated similarly and different characteristics are treated differently. Unlike other systems, assets associated with the same lease can be treated differently without having to fake asset level processing by using multiple leases with one asset each, to represent one actual lease. A hierarchy of rule settings is enforced, whereby the rule at the lower more specific level trumps the rule at the higher or more general level. The system uses a highly encapsulated accounting engine which encapsulates accounting rules in a transparent incorporates accounting expertise in flexible and transparent manner.