Features: Portable, convenient to carry and use. Equipped with three types of external heads, it can meet various requirements. Simple Operations, quick line checking, and improved work efficiency. Multifunctionality: Supports multiple external heads, with wide of applications. : easy to carry, check cables at any time, need for heavy equipment. Easy to operate: Simple to operate, need for complex. Electrician maintenance personnel: used to quickly locate circuit faults and connection conditions. Specifications: Materials: ABS Color: Blue Gray, Gray White(optional) note: Please allow 0-1cm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the picture may not reflect the actual of the item. Thank you! Package Includes: 1Set Corded Telephone Portable, convenient to carry and use. Equipped with three types of external heads, it can meet various requirements. Simple Operations, quick line checking, and improved work efficiency. Multifunctionality: Supports multiple external heads, with wide of applications. : easy to carry, check cables at any time, need for heavy equipment. Easy to operate: Simple to operate, need for complex. Electrician maintenance personnel: used to quickly locate circuit faults and connection conditions.