The iPhone charging skin and charger pad combination costs $80, while the Pre wireless charger is a $70 add-on from Palm.
这套为iPhone手机设计的充电皮套和充电板总价80美元,而Pre无线座充的价格则是70美元。
At the other end of the spectrum is the idea of long-range transmission of wireless power, which could in principle do away with the need for a charging pad altogether.
蓝图的另一个方向是长距离无线传输能量的设想,如果能够实现,理论上可以连充电板也不再需要了。
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