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This is an electronic device charging each other, solving the problem of various portable electronic products when they lack electronic. For those who frequently travel and business trips, they often carry a variety of electronic products, like laptops, cameras, mobile phones, Mp3, etc., but often there will be no electricity when needed, there is no way to recharge the device at time. So that an electronic products with each other by a small electric device on the came into being. It transforms power in electronic products through sound waves interface. Stylish compact shape and easy way to increase the income line of the design highlights.