HiTech Bluetooth speakers come in all different shapes and sizes, from larger options that have the power to fill your whole living room to smaller portables that are great for taking to picnics or moving from room-to-room. The primary advantage of this Hitech Bluetooth speakers is its portability, which makes it easy to share music and makes listening to music a social experience with other people wherever you are. HiTech bluetooth speaker comes standard with USB / SD card for MP3 playback, Aux, and also FM with a basic built in antenna.