BlitzWolf BW-F4: Outdoor Use Speaker With CSR 4.0 Bluetooth

If you like to go traveling with music, then an outdoor use speaker would be your good fellow. At this article, I will show you an excellent product BlitzWolf BW-F4, which features long battery life, wide connectivity and high-fidelity sound. The introduction involves three parts, including designs and shows, features and battery. Designs and Shows…