Jvc Ha-fx3x Xtreme Xplosives In-ear Sound Isolating Extreme Deep Bass Port Headphones 

Ferrari By Logic3 Scuderia S100i Red In-ear Noise Isolation Headphones With Mic 

Hmc349ms8g - High Isolation Spdt Non-reflective Switch, Dc - 4.0 Ghz - Hittite Microwave Corporation 

Free Space Isolator

Polarization Insensitive Optical Isolator

Optical Isolation rs-232 to rs-485 Converter

Ultimate Ears Metro.fi 220 In-Ear Isolating Earphones

iSolate Vibe Earphone for iPod - Metal Silver