... USB Speaker,outdoor speaker KZS-S018Other relative products: USB Speaker,car speaker,mini speaker,active speaker,portable speaker,computer speaker,MP3 speaker,MP4 speaker, SD card speaker,MMC card speakerUSB Speaker ,outdoor speaker KZS ... Built-in digital power amplifier, pure and quality sound Mellow, sweet sound, 3D sound effectsSmall size and easy to carry in traveling, Go ...