-bluetooth speaker -wireless -Support USB ,TF, , -for MP3/4, ... Input TF,Bluetooth, Computer sound card function Speaker output45mm,Within the magnetic,4Ω5W Input powerDC5V ... CTN60pcs/ctnSpeaker Weight270g - TF CARD &Bluetooth&Poratable speaker - Portable & mini speaker box design, enjoy music everywhere anytime- Built-in ... card, play audio files Fashionable and Portable Wireless Mini bluetooth speaker