Bluetooth Speakers Portable Outdoor Oxford Loudspeaker Wireless Column 3D Stereo Music Player Surround Hifi Sound Box

Material technology ABS+rubber oil+canvasBluetooth version 4.2Channel mode MonoPlayback format MP3 / WMA / WAVAmplifier specification 3W*1Speaker specification Ø40mm, 4Ω3W*1Bass diaphragm 30*40mmDistortion rate<3%Bluetooth distance<10 metersExtended memory 16GFrequency response 80Hz-20KHzSignal-to-noise ratio ≧75dBCharging parameters 5V 0.3AProduct size 118x39x78MMPacking specifications 133x43x84MMOuter box specifications 44x28x43.3CMGross weight 16.5KGPacking quantity 100PCS/box