![Amazon.com: SinLoon RJ9 to 3.5mm Telephone Adapter Cable Female RJ9 Headset to Male 3.5mm Cell Phone Adapter - Convert RJ9 Headphone to Smartphones Most Android Cellphone with 3.5mm Headphone Jack(3.5 RJ9) : Amazon.com: SinLoon RJ9 to 3.5mm Telephone Adapter Cable Female RJ9 Headset to Male 3.5mm Cell Phone Adapter - Convert RJ9 Headphone to Smartphones Most Android Cellphone with 3.5mm Headphone Jack(3.5 RJ9) :](https://m.media-amazon.com/images/I/715FwJBxLnL._AC_UF350,350_QL80_.jpg)
Amazon.com: SinLoon RJ9 to 3.5mm Telephone Adapter Cable Female RJ9 Headset to Male 3.5mm Cell Phone Adapter - Convert RJ9 Headphone to Smartphones Most Android Cellphone with 3.5mm Headphone Jack(3.5 RJ9) :
![Amazon.com: Headset Buddy 2.5mm VoIP Headset to RJ9/RJ10/RJ22 Phone Adapter (PH25-RJ9a) : Electronics Amazon.com: Headset Buddy 2.5mm VoIP Headset to RJ9/RJ10/RJ22 Phone Adapter (PH25-RJ9a) : Electronics](https://m.media-amazon.com/images/I/31J2F3x9LmL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Headset Buddy 2.5mm VoIP Headset to RJ9/RJ10/RJ22 Phone Adapter (PH25-RJ9a) : Electronics
![Amazon.com: VoiceJoy 3.5mm Smartphone Headset to RJ9 Adapter Compatible with Yealink T20 T21 T41G etc Phones and Grandstream GXP14XX,GXP2124, GXP2120, GXP2140 GXP2140 GXP2160 GXP2110 : Electronics Amazon.com: VoiceJoy 3.5mm Smartphone Headset to RJ9 Adapter Compatible with Yealink T20 T21 T41G etc Phones and Grandstream GXP14XX,GXP2124, GXP2120, GXP2140 GXP2140 GXP2160 GXP2110 : Electronics](https://m.media-amazon.com/images/I/71WVAwCXeCL.jpg)
Amazon.com: VoiceJoy 3.5mm Smartphone Headset to RJ9 Adapter Compatible with Yealink T20 T21 T41G etc Phones and Grandstream GXP14XX,GXP2124, GXP2120, GXP2140 GXP2140 GXP2160 GXP2110 : Electronics
![Amazon.com: VoiceJoy 3.5mm Smartphone Headset to RJ9 Adapter Cable - 3.5mm Headphone Converter to Office Telephone IP Phones : Electronics Amazon.com: VoiceJoy 3.5mm Smartphone Headset to RJ9 Adapter Cable - 3.5mm Headphone Converter to Office Telephone IP Phones : Electronics](https://m.media-amazon.com/images/I/717+9wG1h+L._AC_UF894,1000_QL80_.jpg)
Amazon.com: VoiceJoy 3.5mm Smartphone Headset to RJ9 Adapter Cable - 3.5mm Headphone Converter to Office Telephone IP Phones : Electronics
![Amazon.com: SinLoon RJ9 to 3.5mm Telephone Adapter Cable Female RJ9 Headset to Male 3.5mm Cell Phone Adapter - Convert RJ9 Headphone to Smartphones Most Android Cellphone with 3.5mm Headphone Jack(3.5 RJ9) : Amazon.com: SinLoon RJ9 to 3.5mm Telephone Adapter Cable Female RJ9 Headset to Male 3.5mm Cell Phone Adapter - Convert RJ9 Headphone to Smartphones Most Android Cellphone with 3.5mm Headphone Jack(3.5 RJ9) :](https://images-na.ssl-images-amazon.com/images/I/61n4psFR6TL._AC_UL210_SR210,210_.jpg)
Amazon.com: SinLoon RJ9 to 3.5mm Telephone Adapter Cable Female RJ9 Headset to Male 3.5mm Cell Phone Adapter - Convert RJ9 Headphone to Smartphones Most Android Cellphone with 3.5mm Headphone Jack(3.5 RJ9) :
![Amazon.com: MAIRDI Office Headset with RJ9 Jack for Cisco Phone, Binaural Telephone Headset with Mic Noise Cancelling for Call Center Landline Deskphone, Including 3.5mm Connector for Cell Phone PC Laptop : Electronics Amazon.com: MAIRDI Office Headset with RJ9 Jack for Cisco Phone, Binaural Telephone Headset with Mic Noise Cancelling for Call Center Landline Deskphone, Including 3.5mm Connector for Cell Phone PC Laptop : Electronics](https://m.media-amazon.com/images/I/61qtThyN4VL.jpg)
Amazon.com: MAIRDI Office Headset with RJ9 Jack for Cisco Phone, Binaural Telephone Headset with Mic Noise Cancelling for Call Center Landline Deskphone, Including 3.5mm Connector for Cell Phone PC Laptop : Electronics
![Amazon.com: VoiceJoy 3.5mm Smartphone Headset to RJ9 Adapter Compatible with Yealink T20 T21 T41G etc Phones and Grandstream GXP14XX,GXP2124, GXP2120, GXP2140 GXP2140 GXP2160 GXP2110 : Electronics Amazon.com: VoiceJoy 3.5mm Smartphone Headset to RJ9 Adapter Compatible with Yealink T20 T21 T41G etc Phones and Grandstream GXP14XX,GXP2124, GXP2120, GXP2140 GXP2140 GXP2160 GXP2110 : Electronics](https://m.media-amazon.com/images/I/51JONaMp62L.jpg)
Amazon.com: VoiceJoy 3.5mm Smartphone Headset to RJ9 Adapter Compatible with Yealink T20 T21 T41G etc Phones and Grandstream GXP14XX,GXP2124, GXP2120, GXP2140 GXP2140 GXP2160 GXP2110 : Electronics
![Amazon.com: LBSC Headset Adapter RJ9 Male to 3.5mm Female Headset Phone MIC Audio Splitter Adapter Cable 2 Pack (RJ9 Male to 3.5mm) : Electronics Amazon.com: LBSC Headset Adapter RJ9 Male to 3.5mm Female Headset Phone MIC Audio Splitter Adapter Cable 2 Pack (RJ9 Male to 3.5mm) : Electronics](https://m.media-amazon.com/images/I/51u7eCqRcCS.jpg)
Amazon.com: LBSC Headset Adapter RJ9 Male to 3.5mm Female Headset Phone MIC Audio Splitter Adapter Cable 2 Pack (RJ9 Male to 3.5mm) : Electronics
![MAIRDI Telephone Headset with RJ9 Jack & 3.5mm Connector for Landline Deskphone Cell Phone PC Laptop, Office Headset with Microphone for Call Center, Work for Cisco Phone 7941 7965 6941 7861 8811 : Electronics - Amazon.com MAIRDI Telephone Headset with RJ9 Jack & 3.5mm Connector for Landline Deskphone Cell Phone PC Laptop, Office Headset with Microphone for Call Center, Work for Cisco Phone 7941 7965 6941 7861 8811 : Electronics - Amazon.com](https://m.media-amazon.com/images/I/711gtVsHyuL._AC_UF894,1000_QL80_.jpg)
MAIRDI Telephone Headset with RJ9 Jack & 3.5mm Connector for Landline Deskphone Cell Phone PC Laptop, Office Headset with Microphone for Call Center, Work for Cisco Phone 7941 7965 6941 7861 8811 : Electronics - Amazon.com
![Amazon.com: MAIRDI Office Headset with RJ9 Jack for Cisco Phone, Binaural Telephone Headset with Mic Noise Cancelling for Call Center Landline Deskphone, Including 3.5mm Connector for Cell Phone PC Laptop : Electronics Amazon.com: MAIRDI Office Headset with RJ9 Jack for Cisco Phone, Binaural Telephone Headset with Mic Noise Cancelling for Call Center Landline Deskphone, Including 3.5mm Connector for Cell Phone PC Laptop : Electronics](https://m.media-amazon.com/images/I/61W2YkvtL7L.jpg)
Amazon.com: MAIRDI Office Headset with RJ9 Jack for Cisco Phone, Binaural Telephone Headset with Mic Noise Cancelling for Call Center Landline Deskphone, Including 3.5mm Connector for Cell Phone PC Laptop : Electronics
![Amazon.com: SinLoon RJ9 to 3.5mm Telephone Adapter Cable Female RJ9 Headset to Male 3.5mm Cell Phone Adapter - Convert RJ9 Headphone to Smartphones Most Android Cellphone with 3.5mm Headphone Jack(3.5 RJ9) : Amazon.com: SinLoon RJ9 to 3.5mm Telephone Adapter Cable Female RJ9 Headset to Male 3.5mm Cell Phone Adapter - Convert RJ9 Headphone to Smartphones Most Android Cellphone with 3.5mm Headphone Jack(3.5 RJ9) :](https://m.media-amazon.com/images/I/71mUH7BRHnL._AC_UF894,1000_QL80_.jpg)
Amazon.com: SinLoon RJ9 to 3.5mm Telephone Adapter Cable Female RJ9 Headset to Male 3.5mm Cell Phone Adapter - Convert RJ9 Headphone to Smartphones Most Android Cellphone with 3.5mm Headphone Jack(3.5 RJ9) :
![Neuftech PC Headset, Cavo Adattatore telefonico – RJ9 Maschio a 2 x Jack da 3,5 mm : Amazon.it: Elettronica Neuftech PC Headset, Cavo Adattatore telefonico – RJ9 Maschio a 2 x Jack da 3,5 mm : Amazon.it: Elettronica](https://m.media-amazon.com/images/I/31Zb0Z+HGVL._AC_.jpg)
Neuftech PC Headset, Cavo Adattatore telefonico – RJ9 Maschio a 2 x Jack da 3,5 mm : Amazon.it: Elettronica
![Amazon.com: VoiceJoy 3.5mm Smartphone Headset to RJ9 Adapter Compatible with Yealink T20 T21 T41G etc Phones and Grandstream GXP14XX,GXP2124, GXP2120, GXP2140 GXP2140 GXP2160 GXP2110 : Electronics Amazon.com: VoiceJoy 3.5mm Smartphone Headset to RJ9 Adapter Compatible with Yealink T20 T21 T41G etc Phones and Grandstream GXP14XX,GXP2124, GXP2120, GXP2140 GXP2140 GXP2160 GXP2110 : Electronics](https://m.media-amazon.com/images/I/31X3aH8TztL._SR600%2C315_PIWhiteStrip%2CBottomLeft%2C0%2C35_PIStarRatingTHREEANDHALF%2CBottomLeft%2C360%2C-6_SR600%2C315_ZA163%2C445%2C290%2C400%2C400%2CAmazonEmberBold%2C12%2C4%2C0%2C0%2C5_SCLZZZZZZZ_FMpng_BG255%2C255%2C255.jpg)
Amazon.com: VoiceJoy 3.5mm Smartphone Headset to RJ9 Adapter Compatible with Yealink T20 T21 T41G etc Phones and Grandstream GXP14XX,GXP2124, GXP2120, GXP2140 GXP2140 GXP2160 GXP2110 : Electronics
![Amazon.com: Poyiccot RJ9 to 3.5mm Adapter, RJ9 Male to Dual 3.5mm Female Headphone Adapter for Telephone Audio Adapter Headset Buddy Cable for Office RJ9 Headphone : Electronics Amazon.com: Poyiccot RJ9 to 3.5mm Adapter, RJ9 Male to Dual 3.5mm Female Headphone Adapter for Telephone Audio Adapter Headset Buddy Cable for Office RJ9 Headphone : Electronics](https://m.media-amazon.com/images/I/61JfKoVMEUL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Poyiccot RJ9 to 3.5mm Adapter, RJ9 Male to Dual 3.5mm Female Headphone Adapter for Telephone Audio Adapter Headset Buddy Cable for Office RJ9 Headphone : Electronics
![Amazon.com: SinLoon RJ9 to 3.5mm Telephone Adapter Cable Female RJ9 Headset to Male 3.5mm Cell Phone Adapter - Convert RJ9 Headphone to Smartphones Most Android Cellphone with 3.5mm Headphone Jack(3.5 RJ9) : Amazon.com: SinLoon RJ9 to 3.5mm Telephone Adapter Cable Female RJ9 Headset to Male 3.5mm Cell Phone Adapter - Convert RJ9 Headphone to Smartphones Most Android Cellphone with 3.5mm Headphone Jack(3.5 RJ9) :](https://m.media-amazon.com/images/I/71x6t5ov4dL._AC_UF894,1000_QL80_.jpg)
Amazon.com: SinLoon RJ9 to 3.5mm Telephone Adapter Cable Female RJ9 Headset to Male 3.5mm Cell Phone Adapter - Convert RJ9 Headphone to Smartphones Most Android Cellphone with 3.5mm Headphone Jack(3.5 RJ9) :
![Amazon.com: Poyiccot RJ9 to 3.5mm Adapter, RJ9 Male to Dual 3.5mm Female Headphone Adapter for Telephone Audio Adapter Headset Buddy Cable for Office RJ9 Headphone : Electronics Amazon.com: Poyiccot RJ9 to 3.5mm Adapter, RJ9 Male to Dual 3.5mm Female Headphone Adapter for Telephone Audio Adapter Headset Buddy Cable for Office RJ9 Headphone : Electronics](https://m.media-amazon.com/images/I/61AJym84pmL.jpg)
Amazon.com: Poyiccot RJ9 to 3.5mm Adapter, RJ9 Male to Dual 3.5mm Female Headphone Adapter for Telephone Audio Adapter Headset Buddy Cable for Office RJ9 Headphone : Electronics
![Amazon.com: RJ9 to USB Audio Adapter, RJ9 Jack to USB Cable Headphone Conversion Line with Control Box with Built-in Volume Switch and Microphone/Speaker Mute Amazon.com: RJ9 to USB Audio Adapter, RJ9 Jack to USB Cable Headphone Conversion Line with Control Box with Built-in Volume Switch and Microphone/Speaker Mute](https://m.media-amazon.com/images/I/61LY9Su+zDL.jpg)
Amazon.com: RJ9 to USB Audio Adapter, RJ9 Jack to USB Cable Headphone Conversion Line with Control Box with Built-in Volume Switch and Microphone/Speaker Mute
![Amazon.com: RJ9 to USB Audio Adapter, RJ9 Jack to USB Cable Headphone Conversion Line with Control Box with Built-in Volume Switch and Microphone/Speaker Mute Amazon.com: RJ9 to USB Audio Adapter, RJ9 Jack to USB Cable Headphone Conversion Line with Control Box with Built-in Volume Switch and Microphone/Speaker Mute](https://m.media-amazon.com/images/I/61XtNhTS3zL._AC_UF350,350_QL80_.jpg)
Amazon.com: RJ9 to USB Audio Adapter, RJ9 Jack to USB Cable Headphone Conversion Line with Control Box with Built-in Volume Switch and Microphone/Speaker Mute
![Amazon.com: SinLoon Phone Jack Splitter RJ11 Female to 2 Female 6P6C Telephone Inline Coupler Telephone Extension Adapter for Landline Fax Machine (1 to 2) : Electronics Amazon.com: SinLoon Phone Jack Splitter RJ11 Female to 2 Female 6P6C Telephone Inline Coupler Telephone Extension Adapter for Landline Fax Machine (1 to 2) : Electronics](https://m.media-amazon.com/images/I/716igQ62waL.jpg)
Amazon.com: SinLoon Phone Jack Splitter RJ11 Female to 2 Female 6P6C Telephone Inline Coupler Telephone Extension Adapter for Landline Fax Machine (1 to 2) : Electronics
![Amazon.com: VoiceJoy 3.5mm Smartphone Headset to RJ9 Adapter Cable - 3.5mm Headphone Converter to Office Telephone IP Phones : Electronics Amazon.com: VoiceJoy 3.5mm Smartphone Headset to RJ9 Adapter Cable - 3.5mm Headphone Converter to Office Telephone IP Phones : Electronics](https://m.media-amazon.com/images/I/51DBmfxkY4L.jpg)
Amazon.com: VoiceJoy 3.5mm Smartphone Headset to RJ9 Adapter Cable - 3.5mm Headphone Converter to Office Telephone IP Phones : Electronics
![Amazon.com: Headset Buddy 2.5mm VoIP Headset to RJ9/RJ10/RJ22 Phone Adapter (PH25-RJ9a) : Electronics Amazon.com: Headset Buddy 2.5mm VoIP Headset to RJ9/RJ10/RJ22 Phone Adapter (PH25-RJ9a) : Electronics](https://images-na.ssl-images-amazon.com/images/I/61oCjJkdB6L._AC_UL900_SR615,900_.jpg)
Amazon.com: Headset Buddy 2.5mm VoIP Headset to RJ9/RJ10/RJ22 Phone Adapter (PH25-RJ9a) : Electronics
![Amazon.com: Poyiccot RJ9 to 3.5mm Adapter, RJ9 Male to Dual 3.5mm Female Headphone Adapter for Telephone Audio Adapter Headset Buddy Cable for Office RJ9 Headphone : Electronics Amazon.com: Poyiccot RJ9 to 3.5mm Adapter, RJ9 Male to Dual 3.5mm Female Headphone Adapter for Telephone Audio Adapter Headset Buddy Cable for Office RJ9 Headphone : Electronics](https://m.media-amazon.com/images/I/61f6I9I9tWL._AC_UF350,350_QL80_.jpg)
Amazon.com: Poyiccot RJ9 to 3.5mm Adapter, RJ9 Male to Dual 3.5mm Female Headphone Adapter for Telephone Audio Adapter Headset Buddy Cable for Office RJ9 Headphone : Electronics
![Amazon.com: VoiceJoy 3.5mm Smartphone Headset to RJ9 Adapter Cable - 3.5mm Headphone Converter to Office Telephone IP Phones : Electronics Amazon.com: VoiceJoy 3.5mm Smartphone Headset to RJ9 Adapter Cable - 3.5mm Headphone Converter to Office Telephone IP Phones : Electronics](https://m.media-amazon.com/images/I/71KTS+Boz6L.jpg)