According to Medialets, mobile ad engagement rates can be improved by 35 percent with the addition of video. A study from the mobile rich media ad firm shows that in the first quarter of 2012 mobile rich media ads containing video had an average of 35 percent higher engagement rates. The users who decided to expand these mobile ads spent a total of 20 seconds within the advertisement. Integrating video or product catalog information within ads can increase the average expand time from twenty seconds to over one minute.