1.Support mp3 read from USB/TF and bluetooth 2.Speaker Output:4Ω 3W*2 3.SNR：≥85db 4.ON/OFF/Light button and headphone input 5.DC 5V & line in 2 in 1 jack 6.External 2200mah 18650 rechargeable battery 7.FM function and FM antenna 8.With LED display and color light Material:aluminium alloy color:BALCK,WHITE,RED,BLUE, 60PCS/CTN

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