Converts your 2.5mm stereo headset to a 3.5mm jack stereo headset. If your 2.5mm headset is on/off enabled so will the jack converted ones.
This adapter will work with the following phones:
iPhone first generation, 3G, 3GS
Blackberry: BlackBerry Bold 9000, Bold 9700, Curve 8900/ 8330/ 8320/ 8310/ 8300, Pearl Flip 8220 / 8230 / 8130 / 8120 / 8110, Storm 9530 / 9500 / 9550 / 9520, Tour 9630
Palm Pre, Treo Pro, Pixi
HTC Imagio / XV6975, Hero - CDMA, Touch Pro 2 / XV6875
LG Chocolate 3 VX-8560, Chocolate Touch VX8575, CT810 Incite, enV Touch VX-11000, Tritan AX-840 / UX-840
LG UX585 / AX585 Rhythm, VX9700 Dare
Motorola Hint, Debut, Karma, Krave, Moto surf A3100, RAZR Vegas VE20, Rival, ROKR E8, ROKR EM330, Ve440, Zine ZN5, Droid
Nokia 5130 XpressMusic, Nokia 5310, Nokia N97
Samsung Behold, Finesse, Freeform / Link, Highnote, Instinct HD SPH-M850, Intrepid SPH-i350, Messager II, Moment, Omnia II, Reclaim, Rogue SCH-U960, Twostep, Hue II / Adorn, Delve, Trance / Violin, Eternity
Sharp Original Sidekick LX, Sidekick 2008 / Gekko
Sony Ericsson Xperia X1 GSM
Price:
Lightweight and comfortable, this Apple iPhone 3G Hands-Free Stereo Headset enables you to carry on conversations while you continue to do other things including listening to your favorite music. 
This 6ft cable will connect to the 3.5mm connection on your Smart Phone and then break out into 3 RCAs, Red, White and Yellow. The 3 RCAs can then connect to your TV, VCR, projector, or any other device accepting an RCA connection. Depending on your viewing device, you may have to switch the red and yellow plugs. This works with Samsung (Captivate i897, Vibrant T959) and Nokia (N8, N86, X6). RND Power Solutions sells directly to the public at discount rates to give you the best price possible. We also manufacture our products to fit you specific phone unlike other companies selling generic cables that may not fit your phone and may be of lower quality.