PH35-PH25 - 3.5mm Headset to 2.5mm Phone Adapter

(4 reviews) Write a Review
Convert 3.5mm smartphone or iPhone headset to standard 2.5mm plug
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Product Overview

  • 3.5mm Female to 2.5mm Male Headset Adapter
  • Convert 3.5mm smartphone, Android, Blackberry, or iPhone headset plug to standard 2.5mm plug
  • Use your iPhone or smartphone headset with any 2.5mm home, office, or mobile phone headset jack
  • Works with 3.5mm stereo headsets

Use your smartphone headset with your home or office phone. 3.5mm Female Headset to 2.5mm Male Adapter. This adaptor converts a 3.5mm TRRS stereo headset plug to a 2.5mm plug, allowing you to use your favorite iPhone*, Android, Blackberry, or other smartphone headset with your home or office phone. The adapter cable is approximately 3 inches long.

** Since most 2.5mm devices are mono, you will only hear mono-channel sound in one (left) ear.


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 Headset Buddy for free within the first 12 months.

For further information about Headset Buddy's Warranty and Shipping & Returns policies select the imbedded links

Warranty Information

* This list is not all inclusive. Please look up the specifications on your specific phone to see if it has a RJ9, RJ10, or RJ22 headset jack. Please let us know if you find more compatible phones or incompatible phone models.

Incompatible Phones:

Panasonic KX-TG934

LG Octane

Incompatible Headphones:

*Nokia and Polycom phone headsets will not work.

Sharper Image SHP981


Compatible Phones:

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

Blackberry Bold 9650, Style 9670, 5810, 5820, 6210, 6230, 6280, 6510, 7510, 6710, 6750, 7100, 7105, 7130e, 7130c, 7130g, 7210, 7230, 7280, 7250, 7270, 7290, 7520, 77xx, Pearl 81xx, 8700c/f/g/r/v, 8703e, 8705g, 8830

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

General Electric (GE) home phone

LG Cosmos

Linksys SPA 921, SPA 922, SPA 941, SPA 942, SPA 962NEC home phone

Nortel WLAN 2210, WLAN 2211Northwestern Bell home phonePalm 685/ 690 Centro, Treo 600/650/680/700p/ 700w/ 700wx/ 750/ 750v

Panasonic 7600, 7700 and 300 series

Philips home phone

RCA Executive Series, VisysSony home phone

Thomson home phone

Uniden home phone

V-Tech home phone


Compatible Headsets:

Compatible With 3.5mm Stereo Headsets for...

Apple In-ear Headphones

Alcatel Tribe OT-980 / OT-980A

Android smartphones

BlackBerry Series: Bold/Onyx 9xxx, Curve 83xx & 85xx, Curve Pearl 81xx, 82xx & 91xx, Style 9670, Storm 95xx, Surve 2 8930, Torch 9800, Tour 9630

DELL Streak, Streak 7, Venue Pro

Palm Pixi, Pixi Plus, Pre, Pre 2, Pre Plus, Treo 680, Treo 750 / Treo 750v / HTC Cheetah, Treo Pro

HTC HD2, 7 Trophy/Spark, Aria, Arrive, Desire (CDMA), Droid Eris, Droid Incredible 2, Droid Incredible ADR6300, EVO 4G, EVO View/Shift 4G, Freestyle, Google Nexus One GSM, HD7, Hero CDMA/GSM, Imagio / XV6975, Inspire 4G, Merge, Touch Pro 2 XV6875, Touch HD, Surround, Thunderbolt, Wildfire, Explorer, Bee, Nexus One

Huawei M735, M750

Kyocera Echo, M6000 Zio / Sanyo SCP-8600 Zio, Kyocera Rio E3100

LG Chocolate Touch VX8575, VX9700 Dare, enV Touch VX-11000, CT810 Incite, Tritan AX-840 / UX-840, Samba LG8575, VS740/US740 Aoex, Arena, Chocolate 3, Fathom VS750, G2x,  GS390 Prime, GW300, GW620, Lotus LX600, Neon II, Optimus M MS690 / Optimus C, Optimus T, Quantum C900, Rumor Touch / LN510,

Tritan AX-840 / UX-840, Vortex VS660, VX9700 Dare

Microsoft Kin One , Kin Two

Motorola A45 Eco, A630, Atrix 4G / MB860, BACKFLIP, Bravo MB520, Charm MB502, CITRUS / WX445, Cliq, CLIQ 2, CLIQ XT, Crush / W835, DEFY MB525, Devour / A555, Droid2 / Droid 2 Global, Droid A855, Droid Pro / A957 / XT610, Droid X, Flipout, FLIPSIDE, Hint QA30, i856 Debut, Karma QA1, Krave ZN4, MILESTONE, Milestone 2 A954, MILESTONE XT720,

Moto surf A3100, Q, Motorola RAZR Vegas VE20, Rival A455, ROKR E8, ROKR EM330, ROKR Z6m, Ve440, WX404 Grasp,XOOM, Zine ZN5Mytouch 3G 1.2, 3G Fender, 3G Slide, 4G

Pantech PN-820

Samsung Acclaim SCH-R880, Captivate SGH-i897, Continuum SCH-i400, Craft SCH-R900, Droid Charge 4G LTE, Epic 4G, Evergreen SGH-A667, Exec SCH-i225, Finesse SCH-R810, Flight II SGH-A927, Focus SGH-I917, Freeform / Link SCH-R350 / SCH-R351, Galaxy 3 i5801 / i5800 / Apollo, Galaxy Indulge SCH-R910, Gem SCH-i100, Instinct SPH-M800, Intercept SPH-M910, Intrepid SPH-i350, Messager III SCH-r570, Messager II SCH-R560, Messager Touch SCH-R630 / SCH-R631, Moment SPH-M900, Mythic SGH-A897, Nexus S / GT-i9020T, Omnia II SCH-I920, Profile SCH-R580, Reality SCH-U820, Reclaim SPH-M560, Restore SPH-M570, Rogue SCH-U960, SCH-R350 Freeform, SCH-R470 Twostep, SCH-U490 Trance / Violin, SCH-U520, SCH-U940 Glyde, Seek SPH-M350, SGH-I607 Blackjack, SGH-T519 Trace, SPH-M360, SPH-M500, SPH-M610, Suede R710, Transform SPH-M920, Trill SCH-R520

Sanyo M1

Sharp FX, Hiptop 3, Sidekick 2008 / Gekko, Sidekick 3

Sony Ericsson X10 Mini Pro, Xperia X10, Xperia X1 GSM, Z710 / Z710i

T-Mobile G2, Danger Sidekick, HD2

Windows smartphones

ZTE E520 Agent

Product Videos


(4 reviews) Write a Review

4 Reviews Hide Reviews Show Reviews

  • 5
    Works perfectly for my applications!

    Posted by Rick on 15th Jun 2017

    The headset buddy 3.5mm Headset to 2.5mm Phone Adapter works perfectly for plugging my Sennheiser SC45 mono (one sided) headset with a 3.5mm plug into my Panasonic desk phone with a 2.5mm jack/port. I have also used it to connect my headset to cordless phones with 2.5mm jacks. Not recommended for stereo (two sided) headsets as you will hear sound only through one ear, but worked great for me per above. The sound quality is excellent, both for speaker and microphone.

  • 5
    Works as described.

    Posted by John Papadopoulos on 18th Jan 2017

    Overseas shipping cost high but it's worth it.

  • 2
    mono audio transfered to only 1 ear

    Posted by Bruce Querbach on 26th May 2016

    mono audio transfered to only 1 ear. 1 ear is too loud, the other ear hears nothing. Hard to find the correct product to match my panasonic phone with an iphone headset.

  • 5
    Connects Uni-Dex Hands-Free Hearing Aid Device to AT&T Home Phone

    Posted by Ike Schneider on 25th Feb 2016

    This little beauty is a champ! I searched and scoured the Internet for a connector that would allow my wife's Uni-Dex Hands-Free Hearing Aid device to connect our AT&T 2.5mm plug home phone. I tried 2 other types of connectors with no luck. The folks at the hearing aid store said it couldn't be done. But since the Uni-Dex device would work directly with her iPhone, I felt there had to be someone out there that could make a connector that works with a 3.5mm iPhone type plug and convert it to a 2.5mm plug for a home phone. And sure enough, this works! Thank your so much.

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