Screen size: 1.8 inchesMemory card type: TF cardMode of operation: touch + buttonInterface: USB 2.0Headphone jack: 3.5Support audio formats: MP3, APE, FLAC, OGGScreen color: color screenScreen resolution: 160 × 128Frequency response range: 20HZ-20KHZAdditional functions: e-book reading, external release function, picture browsing, direct recording functionBattery type: dedicated lithium batteryBattery capacity: 400mAProduct size: 9*4*0.8cm