Yamaha Silent Brass™ for the Trumpet SB7X-2 The newest Silent Brass for Trumpet is model number SB7J
,Brass Pickup Mutes & Personal Studio - Yamaha USA,Amazon.com: Yamaha SILENT Brass Trumpet Mute SB7X-2, Complete System,Yamaha Silent Brass™ for the Trumpet SB7X-2 The newest Silent Brass for Trumpet is model number SB7J,Amazon.com: Yamaha SILENT Brass Trumpet Mute SB7X-2, Complete System