The BK09 Keyboard is a compact 82-key layout with a dedicated number pad and 12 multimedia shortcuts to support fast, efficient work. Key features - Multi-device and multi-OS compatibility: Bluetooth 5.1 lets you switch between 3 devices. Automatically recognizes different operating systems and layouts. Compatible with iPad, iPhone, tablets, laptops, and smartphones. - Portable tri-fold design: Pocket-sized and lightweight. Folding size is 7.28" x 3.74" x 0.68", making it easy to slide into a pocket or backpack. - Quiet, comfortable typing: Scissor-switch keys deliver a silent, smooth, laptop-like typing experience. A balance stand helps keep the keyboard stable while you type. - USB-C charging and long battery life: Built-in 210 mAh battery provides up to 360 days of standby or about 30 days of use on a full 2-hour charge, ideal for business trips or vacations. Use scenarios - On the go with a tablet or smartphone: Connect to an iPad or smartphone for a productive mobile workstation during travel or in a cafe. - Multi-device workspaces: Pair with a laptop and a second device (tablet or phone) and switch quickly without reconnecting. - Quiet work environments: Enjoy quiet, comfortable typing in meetings, libraries, or shared spaces thanks to the scissor-switch design and stable balance stand. Specifications and performance - 82-key layout with a dedicated number pad - 12 multimedia shortcuts for quick access to media and function controls - Bluetooth 5.1, supports up to 3 devices, automatic OS/layout recognition - Compatible with iPad, iPhone, tablets, laptops, and smartphones - Tri-fold, lightweight, pocket-friendly dimensions: 7.28" x 3.74" x 0.68" folded - Scissor-switch keys for silent, laptop-like typing - Built-in 210 mAh battery - USB-C charging - Standby time up to 360 days; use time up to 30 days on a full 2-hour charge Notes - The BK09 Keyboard maintains its described features and capabilities without modification to brand, model, or function.