WindTech TC-6 Tie Clips for 6.5 to 7mm Lapel Microphones, Set of 3 Compatibility: Beyerdynamic MCE-50, the Beyerdynamic MCE-600, the Sennheiser ME2, the Sennheiser ME4, the Sony UWP-V and the Sony ECM-V1 among others Diameter: Accommodates lapel microphones 6.5 to 7mm in diameter Material: Metal Weight: Less than 1.0 oz (28.34 g)