... CadDetailed Product Description1, professional presentation, the leading portable Bluetooth spit eaker phone:Bluetooth chip, using the ... play music partner. Sales of the store card speaker. With standard 3.5mm LINE IN audio ... 3dB)3) signal to noise ratio: ≥ 70 dB4)speaker: 45mm outer diameter, magnetically shielded 4 Europe5) LINE IN ... blue, black, silver, BLACK FQ Bluetooth Portable USB Speaker KS-B208