Lenco XEMIO-253. Player media type: flash-media, Total storage capacity: 4 GB. Audio formats supported: MP3, WMA. Headphone connectivity: 3.5 mm. Frequency response: 20 - 20000 Hz, Impedance: 32 Ом, MP3 bit rates: 32 - 320 Kbit/s. Continuous audio playback time: 7 h, Battery technology: Lithium, Battery capacity: 110 mAh