o no warranty ; no address or telephone number in packing material . try 800\/726 -3801 . o 90 day warranty . unit die after 9 month . o work only with remote control supply ; no universal remote code so now I have one more clicker to kepp track of o tiny speaker supply with unit have a tinny sound ; fortunately receiver easily drive my ancient Rectilinears . also on the plus side sound level be separately adjustable on each channel . on the down side , a built-in cross-over network mean you can not eliminate they sub-par power-consuming biamped subwoofer . o if you switch from dvd to tv , dvd revert back to start of disk . a major pain as now you have to sit through a minute plus of start-up material . o you can not remove dvd 's until you switch back to dvd mode , wait a minute for warmup o almost impossible to navigate through mp3 's . o lack a mute button . oh thos enoisy commercial o Number key can not be use to select dvd chapter . o could use extra audio input for tape deck and reel-to-reel . o lack digital input for PlayStation , etc. .