1. Professional audio mixer, 6-channel input2. 48V phantom power3. Bluetooth wireless connection4. Support USB/computer playback5. Independent mute button6. MP3 independent controlSpecification: Package Weight One Package Weight 3.50kgs / 7.72lb One Package Size 45cm * 39cm * 12cm / 17.72inch * 15.35inch * 4.72inch Qty per Carton 5 Carton Weight 20.00kgs / 44.09lb Carton Size 55cm * 41cm * 46cm / 21.65inch * 16.14inch * 18.11inch Loading Container 20GP: 257 cartons * 5 pcs = 1285 pcs 40HQ: 596 cartons * 5 pcs = 2980 pcs