Mutant Wireless Outdoor Stereo Speakers, MIG WS2 S * Connect to any device that has a 3.5mm output jack * Blue LED-lighted transparent base adds night time ambiance * Three selectable broadcast channels for 900MHz carrier frequency * Auto tune circuit scans for the best possible signal reception with one-touch operation * Automatic sleep mode extends playtime when using batteries as the power source * Soft-touch control panel with individual volume controls * Recessed carrying handle for convenient transportation * Two 4" full-range drivers and two 2" tweeters * Output power of 5 watts RMS x two channels * Wireless remote control * Operates on six D batteries (not included)