compatibility: Works with most tablets and smartphones and supports a wide range of systems, offering a convenient, universal solution and reducing the need for multiple keyboards. Ultraportable design: Weighs 6.35 ounces and measures 9.84 x 5.9 x 0.24 inches, making it easy to carry and store for use anywhere. Long battery life: Builtin rechargeable lithium battery provides more than 20 days of use on a full charge, helping maintain productivity with fewer charging interruptions. Ergonomic typing: Designed for comfort and precision, featuring square keycaps that support accurate typing and improved typing comfort during extended sessions. Key specifications: Builtin rechargeable lithium battery for extended use; compact dimensions and light weight optimize portability; compatible with most tablets and smartphones across common operating systems. Practical use scenarios: On the move: Ideal for travel, commuting, or working from a train, plane, or coffee , where a fullsize keyboard boosts productivity without bulk. Home or office comfort: Use while relaxing on a couch or bed, or at a desk, to type more efficiently with a comfortable, ergonomic layout. Outdoor work: Suitable for outdoor spaces such as parks or patios, enabling productive typing away from a traditional workstation.