Gulbarga (Karnataka), July 17 (ANI): Shivaraj, a third year graduate student from Karnataka’s Gulbarga, innovated a sound device for farmers to save their crop from the animals and birds. The device, which emits a high frequency a sound, scares away the animals and birds and keeps them from entering the farm to damage crops. One of Shivraja's friend said farmers are giving a positive feedback of the innovation. He said Shivraja was given financial and moral support to carryout his work. The sound device is priced at Rs 100 per piece.