Features: This universal mobile signal testing board integrates multiple testing functions, allowing for comprehensive detection of signal strength and quality across various smartphones, identifying potential issue. Utilizing advanced technology, it delivers accurate signal data with a user friendly design that requires no complex setups, making it accessible for users. Perfect for mobile repair technicians, electronics enthusiasts, networks engineers, and everyday users seek to understand and resolve smartphone signal issue. Suitable for use in repair shops, studios, and even outdoor activity, ensuring reliable communication in remote areas by assessing signal strength on the go. Crafted from high quality PCB material, this portable tool is built to last, offering long stability and durability, while its size makes it easy to carry anywhere for immediate signal testing. Specifications: Material: PCB Size: About. 75x75mm/2.95x2.95in Package Includes: 1pc Signal Test Board note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color.