Touch Luminous Guitar Bass Plectrum Glowing Acoustic Guitar Picks w/h LED Light

High-concerned chemical : None Compatible Audio & Video Equipment Style : Professional Audio Equipment Brand Name : Shunmaii Origin : Mainland China Name : Guitar Glowing Plectrum Material : Food-Grade Plastic Size : About 4 * 4cm/1.57*1.57in Thickness : 0.5mm/0.02in, 0.75mm/0.03in, 1.0mm/0.4in Battery : 40mAh Light Power Consumption : 9mw Battery Power : 240mw Light Color : White Light, Green Light, Pink Light Working Principle : Contact Light Continuous Use Time : 120h