Product Name: Self Bluetooth Speaker WS-887 Product Size: 65 * 70 MM Brand: STAR Product Code: 201401203WS887 Color: red cola, cola blue, silver, black, gun color Material: Aluminum ABS plastic Product parameters: 1, Bluetooth version 4.0, supports the self-timer function 2, built-500MA battery, can be used repeatedly 3, Bluetooth distance is no obstacle straight about 10M 4, support the card, insert U disk playback MP3 format songs