Doesn't seem to work, is there a coil or something on the inside? We use is as a device extension (telescope hand paddle), our other couplers work?

Cables can be straight-pinned or cross-pinned. As this was listed as straight, you may need cross-pinned.

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🔌 Connect smarter, sound clearer—never miss a call again!

BUILT TO LAST - Durable, heat-resistant casing protects internal components for long-term reliability.
COMPACT POWERHOUSE - Small, sleek design fits anywhere—perfect for home offices and professional setups.
CRYSTAL CLEAR SOUND - Thickened PCB and gold-plated contacts ensure zero signal loss and pristine audio quality.
SEAMLESS LINE EXTENSION - Effortlessly join two RJ11 telephone lines for uninterrupted connectivity.
UNIVERSAL COMPATIBILITY - Works flawlessly with landlines, fax machines, and answering devices—your all-in-one connection solution.

The SinLoon RJ11 Coupler is a premium inline adapter designed to extend and repair telephone lines with 6P6C connectors. Featuring gold-plated copper pins and a thickened PCB board, it guarantees stable, interference-free signal transmission with no loss in sound quality. Compact and durable, it’s compatible with all RJ11 devices including landlines, fax machines, and answering machines, making it an essential tool for professional and home office environments.

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

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Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

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A$64

Duties & taxes incl.

Australiastore

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

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Brand	SinLoon
Manufacturer	mandyyan
Model	SL-RJ11-CF
Package Dimensions	15.01 x 7.8 x 2.11 cm; 41 g
Item model number	SL-RJ11-CF
Compatible Devices	Landline Phone, Fax, Answering Machine
Number of items	2
Batteries Included	No
Batteries Required	No
Number of Ports	1
Manufacturer	mandyyan
Country of Origin	USA
Item Weight	41 g

SinLoon RJ11 Coupler RJ11 Female to Female 6P6C Telephone Inline Coupler Straight Telephone Cable Extension Adapter for Landline Fax Machine (Straight)(Gold)

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