USmyth&reg; Christmas Holiday Flashing Light Bulbs Necklace, 8 Flashing Lights 3 Modes Last Approximately 5-6 Hours Blinking light bulbs last approximately 5-6 hours of continuous use. Features 26 Multi Colored Bulbs. 8 flashing lights and 3 Modes! AG3 batteries included. Toggle switch activation. 30" necklace. 2-8 years kids' best gift on Christmas and Hallowmas.