Brand N/A Model T-21 Quantity 1 Color Red + Black Audio Mode Natural Rock Jazz Classic Dancing Menu Language N/A Display Size NO Display Resolution NO Touch Screen No Memory Card Type N/A Memory 8GB Max Extended Capacity NO Audio Formats MP1MP2MP3WMAWAVEAPEACCFLAC Tuner Bands FM FM Frequency 87.5~108MHz Other Connections USB 2.0 Battery Type lithium battery Battery Capacity 120 mAh Work Time 7 hours Other Features 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 Sport MP3 1 x USB cable (13cm) 1 x Strap (39cm) 1 x Headphone 2 x Ear caps