The SPA-1050CMB is a Mini Component Home Amplifier and Speaker Combo System that is ideal for bookshelves or other small areas. The amplifier/receiver is equipped with Smartphone Wireless Music Streaming, AM/FM, USB/SD/MMC inputs, and 2 Mic input jacks. The amplifier/receiver also has a Master Channel Volume, Bass, Treble, and Balance control. The speakers are perfectly matched to give an exceptional sound experience.