Square Wireless Bluetooth Speaker Audio Card

Product information: Function: Bluetooth, TF card, AUX input, call function Material: ABS plastic Color: red, green, white, blue Play time: 4 hours (actually determined by the volume) Connection method: Bluetooth connection Product compatibility: Universal Machine weight: 200g Packing size: length 65mm*width 65mm*height 90mm Battery: Built-in lithium battery 400MAH   Packing list: Plastic speaker x1