sound activated led t-shirts for kids /woman,el ... USD 2.good quality 3.kids /woman size sound activated led t-shirt, sound activated t-shirts for kids /woman, EL ... flashing t shirts ,EL sound active t-shirt, EL flashing, EL sheet, EL clothing, ... inside shirt 3. Each Equalizer bar reacts differently depending on sound frequency 4. 4AAA Batteries required 5. Battery pack is ...