This LED EL T-shirt is made of 100% cotton.

It has an electro-luminescent panel (EL) across the front that reacts to music and and 'pump' in time with whatever you are listening to. It also gives a visual rhythm guide to others. It is powered by a battery pack that put within inside of T-shirt. And the EL panel canbe removed and replaced, its interface is universal, you can use the other EL panel to replace it. Stylish and convenient.

Features:

• Glowing LED's animated to ambient noise or music.
• lights up and dynamically changes depending on sound frequency. Especially ideal for night.
• Unique pattern and awesome design, intepret your punk/rock/hip hop/cool/neutral style.
• Wearing this shirt, you'll be an outstanding star wherever you're: disco, party, stage, concert, etc.
• Sound sensitivity adjustable.
• 4 * AAA Batteries Required. (not included)
• Battery & Control Box fits in small interior pocket inside the shirt and can be removed and replaced.
• Comfortable to wear and easy to wash.

Specifications:

Size: M, L, XL and XXL 
Color: as per image
Material: Mainly cotton, 32S
LED lights 
Panel size: 20 * 13cm 
LED color: Multicolor (as shown in the pictures)
Powered by: 4 * AAA batteries (batteries NOT included), or DC 6V power supply
Weight: Approx.248-302g (EL panel and battery & control box included)

Package Contents:
1 * Sound Activated LED T-Shirt 
1 * Battery & Control Box

Wash care information:
Remove all accessories (EL panel, battery and control box, and batteries) before wash;
Wash with like colors;
Machine wash cold;
Hand wash separately;
Do not bleach;
Do not iron on panels;
Do not dry clean;
Do not tumble dry;
Do not leave to soak.