Portable vocal booths.
Create a balanced, acoustically neutral environment around your microphones or instruments
New at Amazon: $229 (each)
ONLY $110 for two ($70 for one; one new in box and one w/out box, both perfect condition)
sE Electronics Reflexion Filter features a 10-layer acoustic filter design that surrounds your microphone and limits the amount of direct sound that reaches your room, therefore reducing the amount of reflections headed back toward the microphone.