Product details of Speaker Bluetooth speaker 12″ W-D12: Support reading .mp3 music files via USB, SD CARD. Supports Bluetooth for convenience. Big 12 inch loudspeaker There is a Goiter In channel for anyone who likes to play electric acoustic guitar. Remote control provided A charging cable is provided. Can be used outside charging. Can adjust bass and treble The fiber cabinet is strong, not a gang. Plug in mic With remote control
