SONY Stereo IC Recorder 2GB AX80 Silver ICD-AX80/S

Recording file format: MP3, Playback file format: MP3, Frequency response (L): 75Hz, Frequency response (H): 20000Hz, Sampling rate: 44.1kHz/192kbps Memory capacity: 2GB, Supported memory cards: None Number of built-in microphones: 2, Microphone movement: Not supported, Directional switching: Supported, External microphone: Supported Low-cut filter: Not supported, Noise cancellation: Not supported, Automatic recording: Supported USB direct connection: Not supported, Type: 2 x AAA, Battery life (recording): 65 hours, Battery life (playback): 40 hours