Product cover: ABS shell
Product power supply: 9V battery
Product socket: Supports RJ45/RJ11 port cable on/off testing
Product Usage: Detect and find fault points for RJ11 and RJ45 port cables
Multifunctional network tester: universal for network telephone lines, remote detection, split design, portable for construction, compact and lightweight, equipped with high capacity 9V carbon capacity, button structure, stable and easy to install