Brass Gear Home Mute for Trumpet -A "small soundproof room" that can be used anywhere- It is very difficult to practice brass instruments such as the trumpet at a low volume like with electronic instruments, so practice mutes are commonly used for practicing at home or other places where there is no soundproof room. However, conventional mutes have the problem of not being able to provide realistic practice due to differences in the blowing feel and deterioration of pitch. Brass Gear has developed a new practice mute for trumpets based on the concept of a "small soundproof room," which significantly reduces the difference in playing feel and deterioration of pitch. Your life will become closer to your instrument. 【caveat】 This product uses a neodymium magnet with strong magnetic force. Please handle with care. Failure to follow instructions may result in death or severe injury. (The magnetic flux density of this product was measured at a distance of 2.1m and was found to be less than 0.00525 gauss, making it non-magnetic, so it can be transported by air as general cargo.) 1. Never bring this product near a person wearing a medical device such as a cardiac pacemaker, as this may cause the device to malfunction or break down. 2. Never bring this product near magnetic recording media such as magnetic cards (floppy disks, magnetic cards, magnetic tapes, prepaid cards, tickets, MO, MD, etc.), as this may destroy the data. 3. Never bring this product near communication devices such as mobile phones or electronic devices (speakers, CD/DVD players, CRTs, mobile phones, watches, etc.) as this may cause malfunctions. 4. If this product is brought near electronically controlled devices or carried onto an aircraft, it may affect the instrument panel or control panel, leading to malfunctions or accidents. Do not bring this product near or onto an aircraft. 5. Be careful not to swallow magnets. Swallowing a magnet can be a choking hazard. If a magnet is swallowed, consult a doctor immediately. 6. People who are allergic to metals may experience redness or irritation of the skin when they come into contact with magnets. If you experience any of these symptoms, please do not touch the magnets. 7. Avoid washing the magnet part with water or with chlorine, acid, alkaline or organic solvents, as this will cause corrosion of the magnet or deterioration of its properties. 8. The magnetic properties will deteriorate at high temperatures. Please use at temperatures below 80°C. *Since we use neodymium magnets with strong magnetic force, the adhesive on the magnets may come off. In that case, we apologize for the inconvenience, but we ask that you reattach it using regular adhesive or instant glue. Please note that the above symptoms are not covered by the warranty.-Size details- Recommended bell diameter: 115-129mm *Cannot be attached to instruments with a bell diameter exceeding 129mm. Product size: Diameter: 135mm, Height: 113mm Material/Weight: ABS resin / Approx. 184g -How to use- 1. Please prepare your trumpet and the "Home Mute" product. 2. Unscrew the "Home Mute" cover and remove it. The lid is divided into two parts and is joined by a magnet, making it easy to attach and remove from the trumpet. 3. Attach the removed lid to the bell of the trumpet. *When attaching, make sure that the lid parts are held together by the magnets. Connect the attached lid to the Home Mute main body. 4. Once the "Home Mute" lid and main unit are connected, the process is complete. *Please be careful not to tighten the connection too much as this may damage the screws.