Bluetooth Speaker with FM / USB / SD SLOT Mini Audio Outdoor Sports Wireless Call Specifications: Main function Bluetooth. Call .TF card .AUX.USB.FM Product Material ABS plastic rubber oil cloth Bluetooth Specification RDA Bluetooth Transmission distance of 10 meters Speaker specifications Ø45mm, 4Ω / 3W * 1 Power amplifier specifications 3W Battery specifications built-in 400MAH Play time 1.50 Product size 80 * 45 * 140mm Product net weight 200 gr Color Black Gray Red Blue Green Orange Packing size 16.2 * 5.2 * 8CM Accessories content charging line