【Compatibility of 2.5mm Female Jack】: This 2.5mm female to RJ9 male headset adapter is only suitable for 2.5mm headsets. Do not work with 3.5mm headsets. (NOT for cell phone and computer headsets)
【Plug and Play】: Connect your 2.5mm headset to the 2.5mm female jack, and then the 4P4C RJ9 male plug to the Headset or handset port on your office landline phone. And then you are ready to make/receive phone calls on your IP phones with your standard 2.5mm headset.
【Super Durability】: This 2.5mm to RJ9 adapter, 15.7 inch (40cm) long, is made of durable PVC material. Very lightweight and wear-resistant.
【Warranty & Notes】: Weatwo offers 45 days money back & 1 year worry-free guarantee. NOT WORK FOR SMARTPHONES AND COMPUTERS. ONLY COMPATIBLE with some specific phone models listed in the description (include but not limited). For other landline phones, please consult us for Compatibility Guide or Advice.