... , pcb.3.Process / TechniqueStamping4.ColoringFilled with Soft enamel match Pantone Chart Colors5. ... , round, or customizedInner component: speaker, battery, PCB, ICSpeaker size: 27mm metal availableBattery ... Brazil, Germany, Turkey, Poland, Switzerland and so on Mini Keychains: 1:Material: Zinc Alloy2:Size ... well known manufacturer in electronics field, collecting in development, produce and sales. Our ...