Perfect Craftsmanship The AH115 adopt zinc alloy, which create a unique and exquisite metallic appearance showcasing the high-tech element. Inspired by the arch roof style of the Sydney Opera House. When light sheds on the curve surface, the texture and quality of zinc alloy are emphasized. Dust-proof, Water-proof, Shock-proof and Robust The unibody patented COB technology is applied to build the exquisite metal body to improve holding touch with full curve coverage. The AH115 is super-mini and lightweight, they have incredibly large storage space up to 64GB for storing 24,000 HD photos and 200+ minutes of Full HD. Ergonomic Design Easy to Pull & Plug Prevent fingertip from slipping away Symmetrical appearance brings sophisticationInterface:High-speed USB 2.0 certified; backwards compatible with USB 1.1 Power Supply:USB bus powered, No external power required Systems Supported: - Windows 10/8.1/8/7 Mac OS 10.6.X or above Linux 2.6.X or above Dimensions:(L)23.2 x(W)12.1x (H)4.5 mm Weight:4.3g