Quantity: 1 - Color: Black - Audio Mode: Natural / Rock / Jazz / Classical / Live / Dancing / Popular - Display Mode: Random play / single player - Memory: 4GB - Audio Formats: MP3 / WMA / VBR / AAC - Tuner Bands: FM - FM Frequency: 87.5~108MHz - Battery Type: Lithium battery - Battery Capacity: 130mAh - Work Time: 6 hour - Operating temperature: 0~50'C - Frequency response: 30Hz~20kHz - Waterproof: IPX8 - Support Windows ME / 2000 / XP / Vista - PC connector: USB 2.0 - Great for outdoor sport use - Packing list: - 1 x MP3 player - 1 x USB cable (7cm) - 1 x Strap - 1 x Waterproof headphone - 1 x Pair of earphone caps