Sony's PCMD50 Portable Linear PCM Recorder offers professional audio recording in an affordable package. The two-position electret condenser microphones adjust for wider stereo sound. Four circuit boards make this recorder run quietly, eliminating internal audio interference. Ideal for journalists, recording sound effects and capturing live musical performances, its durable aluminum construction, light weight and long battery life enhance portability. The 4 GB internal solid-state flash drive has no moving parts to fail or become damaged. Increase the storage capacity by inserting a memory stick into the provided slot. Quickly upload your recorded audio to a PC or Mac with USB 2.0.