Detailed Product Description 1.Built-in 1GB-8GB memory with extended memory2.Sleek and elegant design suits for both men and women users,Recommended for journalists, traffic police, travelers and students Product Specifications: Product Size 170mm x 160mm x 40mm Physical weight 39grams Speed Read>700kbs, write>500kbs USB 2.0 Power supply Embedded 550mAh Li-polymer Battery Power duration 4-5 hours ...