Coincidentally I just got an el-cheapo one, that bar the quite obvious antennas and blinking leds is a "direct plugin" (as your typical air freshener), the thin

Coincidentally I just got an el-cheapo one, that bar the quite obvious antennas and blinking leds is a "direct plugin" (as your typical air freshener), the thingy is sold everywhere with different brands but the origin should be this[0], the nice thing is that it has the plug that can be rotated 90 degrees so it is good for both horizontal and vertical sockets. [0] http://www.pix-link.com/page50?product_id=144 http://www.pix-link.com/page50?product_id=144