Shipped in 3 to 5 working days Maxell BT-90 Bluetooth Cassette Speaker – Silver   Speaker System Type Portable Speaker Audio Output Mode Stereo Output Power 6 W Output Power per Channel 3 W Frequency Response 100Hz-20kHz Acoustic Impedance 4 Ω Audio Controls Power Mute Microphone Call answer/End Built-in Devices Microphone Bluetooth Bluetooth 4.1 Interface [...]