U Port With Screen Mini TDV26 Card Bluetooth Speaker

Product information: Power supply mode: built-in lithium battery Color: pink, green, blue, black, silver, red Frequency response range: 60Hz-15KHz Interface type: USB Packing list: box + charging cable + speaker Applicable people: general Specifications: Bluetooth version Battery capacity: 300M Shell material: metal Operation mode: button Function: card, radio Product size: 5*5*5 cm Material: aluminum alloy Battery: Built-in polymer battery (lithium battery) 550mAH Output power: RMS 3W mono THD