3.5mm Stereo Audio Adapter with Microphone Built-in for Sony Ericsson W550/W800/K750 (78CM-Length)

Pros: Low price Light-weight Lets you use any 3.5mm earphones/headphones works as an antenna for phones with FM radio

Cons: Does'n work as stereo, only one channel is heared It is bulky compared to the official Sony Ericsson adapters. As a radio antenna it has poor signal quality. When the phone starts and stops playing audio it makes an annoying sound like static but when it is playing the audio the sound is clear.

Other: It's adoptable with a bunch of Sony Ericsson phones and if it works well it's a good alternative to spending $20-$30 on original earphones.

Pros: Cheap alternative to Sony Ericsson genuine ear piece. Convenient and easy to use. The sound amplifer/speaker is clear and concise.

Cons: It is a bit tight, so one must take care not to pull too hard or push in too much into the phone. The clip is fragile, seems like it is going to break anytime. The sound amplifer/speaker is loud!!

Other: I will buy one more for my girlfriend. :D