1. Professional audio mixer, 16-channel input2. 48V phantom power3. Bluetooth wireless connection4. Support USB/computer playback5. Independent mute button6. MP3 independent controlSpecification: Package Weight One Package Weight 5.00kgs / 11.03lb One Package Size 69cm * 45cm * 12cm / 27.17inch * 17.72inch * 4.72inch Qty per Carton 3 Carton Weight 21.00kgs / 46.30lb Carton Size 67cm * 46cm * 34cm / 26.38inch * 18.11inch * 13.39inch Loading Container 20GP: 254 cartons * 3 pcs = 762 pcs 40HQ: 590 cartons * 3 pcs = 1770 pcs