The complete portable and soundproof system is the most innovative product from brass instruments since the valve. With Silent Practice you'll hear a sound inside the earphones so rich and full youll think you are standing on a concert hall stage. The Silent Brass system lets you play your horn anywhere you want, anytime you want, and with just the kind of ambiance you feel like. You can mix into the sounds of a CD player, a Silent Piano, an electronic keyboard or other Silent Brass, and output your playing into a tape deck or even an amp with speakers. Never again will you have to search for a practice room, have to 'stop because it's getting late'. The Silent Brass system includes Personal Studio, Pickup mute, and earphones. Separate Pickup Mutes are also available.