Product Specifications: [Microphone] Manufacturer: Daytona (DAYTONA) Type: Flexible Microphone Compatibility: DT-E1 Part Number: 15119 (Replacement Part) Quantity: 2 Included: Fixing fastener x 1 Product Condition: Thank you for viewing. This is a listing for a Daytona DT-E1. Only one fixing fastener is included. I previously received a DT-E1 set from an acquaintance, but I haven't used it because I wear a full-face helmet. Thank you.