### Red LED Retro Sunglasses Rock out in our Red LED Retro Sunglasses. These unique sunglasses offer the classic three light settings: steady on, fast flash, and slow flash. For an extra surprise, flick the switch to activate the sound-reactive mode, turning them into sound-activated light-up sunglasses! These bright red sunglasses look great during the day and add an extra feature of bright red LEDs built-in for nighttime fun. Perfect for clubs and concerts, these sound-activated sunglasses are sure to impress. One size fits most. AG13 batteries are included and installed.