Designed for onthego use, this compact and lightweight USB data blocker fits easily into a pocket, bag, or can be attached to a keychain. The transparent casing provides a clear view of its simple construction, making it suitable for travelers, frequent airport visitors, or anyone using shared charging facilities. Key benefits Data protection during charging: Blocks all data transfer while power is delivered, preventing unauthorized access to your information on public USB ports. Secure and efficient charging: Builtin smart charging chip supports a range of 550V and 15A, enabling charging while data lines are blocked. Portable and durable: Very compact and lightweight, designed for easy carry on a keychain or in a purse or pocket; transparent casing adds a straightforward, visible design. Broad compatibility with USB power connections: Intended for use with USB charging setups, ensuring power delivery without data transfer. What makes it stand out Simple, reliable protection without software or settings; just plug in and charge. Physical data blocking paired with smart charging technology to balance safety and charging performance. Lightweight, pocketable form factor suitable for daily use and travel. Use scenarios Airport and travel: Use at public charging stations in airports, hotel lobbies, or travel hubs to protect your data while charging. Public spaces: Cafes, libraries, gyms, or shared offices where devices are charged from public USB ports. Everyday carry: Attach to your keychain for quick protection during daily commutes, errands, or school days. Specifications and attributes Function: Data lines blocked; power delivery allowed Voltage/current range: 550V / 15A Size and weight: Compact and lightweight for easy portability Material and appearance: Transparent casing for visual clarity Performance: Enables charging while preventing data transfer, reducing data leakage risk on public charging facilities