Sony SRS-P7 Passive Portable Speaker System

There are times and places for a mega-wattage, wall of Sound system. Big parties on weekend nights, for instance. One lives for those times. But weekend warriors who love Music need portable, less obstreperous options for all those other activities during the week. Supplying a soundtrack to those hours of due diligence in the study carrel, waiting in line for tickets, or hard-fought hackeysack tourneys, requires only your Walkman® and the SRS-P7 Passive Portable Speaker System Bass reflex duct design provides amazingly powerful sound with lots of bass end "Passive" means no Batteries or plug-in required Stereo mini-plug Input Speakers join together into a lightweight, easily carried package Driver units: 2-inch diameter cones Impedance: 6 Ohms Sensitivity: 83dB/w/m Frequency response: 250Hz>15kHz Dimensions (Each Speaker): 4-1/4"H x 2-7/8"W x 2-5/8"D; L&R speakers together weigh 9-1/3 ounces Color: Silver