Notes: 1.Due to the different display and different light,the picture may not reflect the actual color of the item.Thanks for your understanding. 2.The phenomenon with noise is normal,because the driver is actually a transformer(named inverter), it changes thevoltage from 3V to 100-110V, because the working voltage of el wires is100-110V. So please don't worry about the noise.Thank you! Specification: -Product:EL Wire Glasses - 10Lighting Color: Blue, Transparent Blue, Red, Pink, Purple, Yellow, Orange, White, Green, Lemon Green. - Powered By: 2 x AA Batteries (Not Included) - Multi Function: Steady On, Fast Flashing, Slow Flashing, Off - Item Weight:about 75g -Size:15x15x5cm -  Material: Plastic -When you press the button, you would find the the light has three modes: constant light, fast flashing light and slow flashing light - Can be used on any Occasional such as Un Occasional, Rave Parties, Discos, Clubs, Haloween ,Birthdays, Festivals and Events