Philips GoGEAR SoundDot 2GB. Player media type: flash-media, Total storage capacity: 2 GB. Audio formats supported: MP3, WAV, WMA. Headphone connectivity: 3.5 mm. RMS rated power: 0.005 W, Frequency response: 80 - 18000 Hz, Signal-to-Noise Ratio (SNR): 84 dB. Interface: USB 2.0