Practice mute for home practice. Yamaha Silent Brass (old type) for trumpet, Pickup Mute PM7 and Personal Studio ST7. The Pickup Mute has high muting capabilities (even when played forte, the sound is about the same as a whisper), and the intonation and resistance are good, so it can be used as a practice mute. Compared to the latest models, it is large and does not fit in the case because it sticks out of the bell, but it is ideal for practicing at home (at night) before ensemble or performances. The Personal Studio has two input jacks from the Pickup Mute and two stereo headphone jacks so that two people can play together. You can duet. There are also three reverb modes: lesson room, hall, and church. The outer box, power adapter, earphones, and stereo cord are not included.