Sony India has announced a new addition to its voice recorder range with ICD-PX470. It features a 'high-sensitivity, low-noise S-microphone' to record those faint audio sources without capturing excessive background noise. The recorder is equipped with 4GB of internal memory that is expandable up to 32GB and comes with a free USB port for data transfer. It supports adjustable microphone setting and gets a claimed battery life of up to 55 hours. The ICD-PX470 is available across Sony retail stores and leading online portals for ₹4,990.