Roland JAZZ CHORUS Bluetooth Audio Speaker JC-01,JC-01 Bluetooth Audio Speaker,ギターアンプ型Bluetoothスピーカー「JC-01」は約2万円で12日発売。Roland/BOSS新製品 - AV Watch,Roland JC-01 Bluetooth Audio Speaker - Secondhand at Gear4music,Roland Jazz Chorus JC-01 - Wireless Bluetooth Audio Speaker - World's Smallest JC-120