DESC: Catch the attention of others with this super bright flashing battery and clear battery door. LEDs flash, dance and strobe in a programmed pattern when you make or receive calls and message alerts. Clear battery door included. FEATURES 3.6V, 950 mAh Li-ion flashing battery 17 Super Bright BLUE colored LEDs Internal antenna Flashes in multiple programmed patterns! Includes Clear battery door Flashing Battery Installation Instructions Peel adhesive from antenna strip Attach antenna strip to battery Install battery Note: For batteries without adhesive strips, simply fold inward and install battery.