SCE SOL 1100-SYS Wireless Lamp Speaker by The Sound of Light Works with iPod's, iPad's, computers, mp3 players and home stereos Each transmitter can operate up to 4 Lamp Speakers. (Additional Lamp Speakers can be purchased separately) Create up to 2 listening zones Works with iPod's, iPad's, computers, mp3 players and home stereos Each transmitter can operate up to 4 Lamp Speakers. (Additional Lamp Speakers can be purchased separately) Create up to 2 listening zones No wires to run or holes to cut 3" high performance speaker; 25w amp with digital sound processing; 75w max light bulb