| 摘要 |
A multimedia device (100) includes electrical circuitry and a rechargeable power source (202) connected to audio circuitry, stored multimedia data, and a speaker (406) within a weatherproof housing (102) for playback of media. An operator initiates playback of the media by energizing a capacitor assembly (232) by rotation of a dynamo (222) operably connected to a hub (208) at the exterior of the device (100). The power circuitry monitors charging of the capacitor assembly (232) and permits playback of the multimedia data when the capacitors contain enough energy to playback the data. |
