| 摘要 |
A support base includes a housing having an upper opening, a circuit board received in the housing and having a coupler, a cap pivotally secured in the housing and movable to selectively enclose the opening of the housing by such as a spring member. A wireless transmission device includes another coupler engageable into the opening of the housing, and engageable with the coupler of the circuit board, for wireless transmission purposes. The housing includes a channel formed by two tracks and communicating with the opening of the housing, to receive the coupler of the wireless transmission device.
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