大功率内置蓝牙功放板 包邮 AC220V/DC12V-24V 8F HI-FI BASS POWER AMPLIFIER L-CH R-CH USB V+ Micro TF 凤 ON OFF READ Bluetooth VOL TREBLE BASS DG12-24V AC110-240V CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN Bluetooth 12Y/24V/220V三用电源 声音大低音重三车载家用均可使用 可推6寸或8寸低音炮+1个高音头