OLYMPUS IC Recorder with Radio Recording Function Radio Server Pocket (with Speaker & Antenna Station) PJ-25 Ideal for radio courses, etc. You will surely be able to master a language with this. Operation confirmed. Brand: OLYMPUS Color: Black Connectivity Technology: USB Tuner Technology: FM, AM Power Source: Battery Powered Hardware Interface: microSDHC, USB Number of Batteries: 1 Lithium Ion battery Manufacturer: Olympus Recording File Format: MP3, Playback File Format: MP3/WMA, Frequency Response (L): 40Hz, Frequency Response (H): 17000Hz, Sampling Rate: 44.1kHz/128kbps Memory Capacity: 4GB, Supported Memory Card: microSDHC Number of Built-in Microphones: 2, Microphone Movement: Not Supported, Directivity Switching: Not 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): 33 hours, Battery Life (Playback): 39 hours