This is a SONY stereo IC recorder "ICD-SX88 (2GB)". It's an older model, but in good condition, and can still record and play back with its 2GB capacity. It comes with a dedicated case, SONY earphones, a type B USB cable, two size AAA rechargeable batteries (Amazon brand), and the instruction manual downloaded and printed from the HP website. The specifications are as follows: Recording file format: LPEC, Playback file format: MP3/LPEC, Frequency response (L): 80Hz, Frequency response (H): 20000Hz, Sampling rate: 44.1kHz/16bit Memory capacity: 2GB, Compatible memory card: None Number of built-in microphones: 3, Microphone movement: Not supported, Directivity switching: Supported, External microphone: Supported Low-cut filter: Not supported, Noise cancellation: Not supported, Automatic recording: Supported USB direct connection: Not supported, Battery type: AAA x 2, Battery life (recording): 19 hours, Battery life (playback): 19.5 hours