Philips SA4RGA04RN. Player media type: flash-media, Total storage capacity: 4 GB. Display: LCD, Display diagonal: 27.9 mm (1.1 "), Display resolution: 128 x 64 pixels. Audio formats supported: MP3, WAV, WMA. Headphone connectivity: 3.5 mm. Frequency response: 80 - 18000 Hz, Signal-to-Noise Ratio (SNR): 84 dB, MP3 bit rates: 8 - 320 Kbit/s