* Q1 adj loss $0.04/shr vs est EPS $0.05
* Sales fall 11 pct to $24.3 million
* FY adj profit view 21-27 cents
* Shares sink 20 pct after market
Nov 11 (Reuters) - DynaVox Inc DVOX.O, which launched an IPO in April, posted a surprise quarterly loss as margins fell on less favorable product mix, along with lower royalties and sales, pulling its shares down 20 percent after the bell.
DynaVox, which makes communication and education products for those with language and learning disabilities, said that softening of demand for both its speech generating devices and software products in the first quarter has continued in the second quarter as well.
For the full year, it sees adjusted profit of 21-27 cents a share. Analysts were looking for 47 cents a share. [ID:nASA01282]
First-quarter net loss came in at $0.5 million, or 5 cents a share. Sales fell 11 percent to $24.3 million, versus market estimates of $24.0 million.
Excluding items, it lost 4 cents. Analysts on an average had expected profit of 5 cents, according to Thomson Reuters I/B/E/S.
The company’s shares, which have more than halved since it completed its IPO on April 27, were trading at $4.66 after the bell. They closed at $5.82 on Thursday on Nasdaq. (Reporting by Krishna N. Das in Bangalore; Editing by Maju Samuel)