| 摘要 |
PROBLEM TO BE SOLVED: To solve the problems of the need for separately carrying out transfer of music data and charging to a built-in battery, laboriousness and frequent occurrence of neglect in charging. SOLUTION: This system is provided with a host apparatus interface 1a which receives the electric power supplied from a host apparatus 2 and is inputted and outputted with information between itself and the host apparatus 2 and plural recording and reproducing device interfaces 11, 12 and 13 which output the electric power received by the host apparatus interface 1a to a recording and reproducing device 3, are inputted and outputted with the information between themselves and the host apparatus interface 1a and are further inputted and outputted with the information between themselves and the recording and reproducing device 3. |
