{ 
"devicename":"Sycreader RFID Technology Co., Ltd SYC ID&IC USB Reader", 
"volume": 1.0,   
"playlist": [
        {
            "id": "0002693373",
            "file": "./music/ACDC - Back In Black.mp3"
        },
        {
            "id": "0011415256",
            "file": "./music/ACDC - TNT.mp3"
        },
        {
            "id": "0011394336",
            "file": "./music/ACDC - Thunderstruck.mp3"
        }
    ],
"controlcards": [
        {
            "id": "0011462127",
            "function": "vol+"
        },
        {
            "id": "0011394129",
            "function": "vol-"
        }
    ]
}