Features:

• RJ11 inline coupler is used to connect and extend two existing telephone lines with R11 telephone connector at both ends through telephone through box. 
• SMOOTH CONNECTION - Compress all the spare space, accurate signal transmission, small and exquisite, compact, and durable. Easy to install and no static or distortion of voices. 
• WIDE RANGE OF USE - Phone line coupler can be used for all telephones and fax machines, and is an assistant for office meetings, Premium Quality Inline Coupler for join 2 RJ11 telephone lines together, Extends phone line connections.
• MATERIAL - Phone line coupler High-quality PVC internal insulation, strong anti-interference ability, oxygen-free copper conductor, high-fidelity design, and exquisite craftsmanship.
• 3 MICRON GOLD PLATED PINS - It has high fidelity sound quality, exquisite workmanship, strong anti-interference ability and low signal attenuation coefficient. Provides good solid connection without signal loss.