Your 20 x 16 canvas uses cutting-edge Onsia flat panel speaker, a speaker with a thin, almost flat, profile, the Bluetooth Sound Art features a slim profile (1.5") making it indistinguishable from a canvas or museum wrap art piece. Get rid of those bulky and unsightly speakers, hang your beautiful Bluetooth Sound Art on your wall to complement, accent and fill your living space with rich warm sound. No wires, no mess... no stress! DGA ONSIA's Bluetooth Sound Art is rechargeable and has a Standby time of 30 days. This means you can leave your Bluetooth Sound Art ON all the time allowing you to play music whenever you want. Just pair your Bluetooth device and play your favorite music. ONSIA�s Bluetooth Sound Art Wireless Speakers will automatically go into a power saving mode when the music stops or is paused allowing it to remain on standby for up to 30 days.