i have a white one and a blue one. i have washed the white one 4 or 5 times using windex with amoania. ispray the windex straight onto the speaker then with a soft thoothbrush i scrub it then with a clean and dry white wash cloth i rub it . wash cloth gets very dirty. then again with another white cloth i dry it. ive had it for a little over 3 years and still works and sounds like new. hope this helps .