A dispensing canister and method for reducing dose fluctuation and improving evacuation in the dispensing of a pulverulent material such as beverage-forming or food-forming powder. A sleeve is rotated within the stuffing box housing and receives the sucker rod therein, while one or more bearings guide rotation of the sleeve. The device also includes a housing which may resemble a sports ball or other desired ornamental design. In another aspect, a system embodiment includes an AIN network configured to establish communications between the wireless device and a database andor the recipient telecommunications device. The method also includes transmitting at least one measurement report based on the interference measurements of the primary frequency and the secondary frequency. The first and second signals indicate respective, different confidence levels that an event has occurred.