*TRADES not available for this item *SHIPPING available $150 FIRM ($232 brand new) Purpose: protects the people opposite your speaker cone from being beamed in the face and therefore allowing you to maintain the appropriate volume to compete with the drums. You and the rest of the band can hear your sound better because the sound is being thrown across and up. ToneShield Website: Solves the Speaker Beaming problem so you, the sound engineer and the audience will be happy Folds up and fits in the back of many open back amps and cabinets Designed and Crafted in Chatham Virginia - USA Quick Setup and Tear Down - less than 30 seconds! Durable and repairable - each component is individually replaceable.