Karbonn K99 Thunder Box is your basic phone with a decent price which stands out with features like dual sim, 1500mAh long lasting battery, the loudest speakers on a phone I have ever heard and of course dual sim. If you are not a fan of touch screen phones, dont really use your phone for internet, and are looking for a stunning sound quality from speakers and a long battery life to match, this is your phone.
Decent features for price, dual sim, solid long lasting battery, loud speaker that is the envy of home theatre systems!
Average build. No new features. Memory card not included.