The MM-51 Mic-Muff from WindTech is an American-made fitted fur windscreen that provides high-quality wind protection for portable audio recorders at an affordable price. The MM-51 features a 3/4" fur length for maximum wind diffusion. The Mic-Muff is acoustically transparent and won't degrade microphone performance. The MM-51 is compatible with the Alesis Pro-Track, the Sony PCM-D1 and D-50, the Tascam TM-2X, DR-100, DR-40, DR-2D, GT-R1 and TM-2X, as well as the Zoom H2, H4, H4n and Q2. 3/4" fur length provides maximum wind diffusion without degrading mic performance.