A hockey practice system for helping goaltenders and shooters to visualize scoring and goaltending angles in hockey. Ink supply adjusting valve includes an ink inlet communicates in ink fluid communication with the ink storage chamber and an ink outlet connected with ink-supply port of ink storage chamber and a valve body constructed of a film and holder thereof and in which at least two small ink chambers are partitioned and both of the small ink chambers are communicated through a small ink channel. If the virtual \u201cmeeting\u201d should be adjourned or ended, the system saves the data, discussions that occurred during the meeting, and all the scenery and content related to the virtual meeting so that the meeting can be continued with all of the content and imagery in place. Moreover, the controller may generate the at least one data bus code on the vehicle data communications bus to control the at least one operable vehicle device based upon a command signal received by the wireless device.