show / hide sidebar


One year warranty on all Headset Buddy products


100% Satisfaction, 30 day money back guarantee


Easy return, No restocking fee

We accept Apple Pay

2.5mm Male to RJ9 Male Audio Cable for Amplifiers

$15.95 $10.95
(You save $5.00)
Usually ships within 24 hours

Product Description

  • Adapts phones with a 2.5mm headset jack to either your corded headset amplifier jack, or to your wireless base station
  • Easy to use and install
  • Simple to use with most devices, amplifiers, and wireless base stations
  • High-quality manufacturing for extra durability
  • Professional-grade wiring and superior audio quality
  • 1 year warranty on all Headset Buddy products

Use a wireless headset or amplifier with your 2.5mm headset jack. This male 2.5mm to male Rj9 adapter allows you to connect any telephone with a 2.5mm headset jack to a wireless base station or wired amplifier. Compatible with most standard amplifiers and wireless base stations such as Plantronics, Jabra, and GN Netcom.

All Headset Buddy products are EU RoHS Compliant.



Works with any phone that has a 2.5mm headset jack.


AT&T Synj, 992, 1080, 1070, 1040, 993

Cisco SPA921, 501G, 502G, 504G, 508G, 509G, 525G, 7920, 7921 7921G, 7929, Powercube

Linksys SPA 921, SPA 922, SPA 941, SPA 942, SPA 962

Nortel WLAN 2210, WLAN 2211

Panasonic 7600, 7700 and 300 series

RCA Executive Series, Visys

Product Videos

Male 2.5mm to Male RJ9 Adapter 00:42 Male 2.5mm to Male RJ9 Adapter now available from The Headset Buddy. Connect your telephone to a wireless base station or amplifier. Works with Plantronics headsets!

  • Headset Buddy Video Thumbnail Preview Image
    Male 2.5mm to ... M...

Warranty Information

Free returns, always!

We have a 30-day, no-questions-asked return policy for all of our products as well as a one-year, 100% Satisfaction guarantee; we’ll replace your HeadsetBuddy for free within the first 12 months.