Cornet mouthpiece 4B

Jeemsound Cornet Mouthpiece 4B

This mouthpiece offers a warm, rich tone with excellent flexibility, allowing you to transition smoothly across harmonics. The wide, semi-flat rim ensures comfort and endurance, making it a versatile option for both harmony and lead roles. Ideal for players seeking a reliable all-around performer.

• Cup diameter: 16.50 mm (0.649 in) – Comparable to Denis Wick 4 or Bach 2
• Cup depth: B – 17.15 mm (0.669 in), deep
• Throat size: 4.3 mm (0.169 in), medium
• Shank: Short



Custom Models Available: If the specifications of this model don’t meet your needs, I offer custom designs at the same price. All sizes and specifications are possible.


Crafted from beech wood, known for its mechanical strength and acoustic performances, this mouthpiece provides a smooth, finely-grained surface. Wooden mouthpieces like this offer a softer, more velvety tone compared to brass, while improving lip comfort. The wood’s natural warmth is further enhanced by a nourishing balm, which hydrates your lips during play. The mouthpiece’s finish is less slippery than plated brass, promoting better lip control, precision, and endurance.
To ensure durability, the entire mouthpiece is bathed in hot beeswax, sealing the wood from within. A surface balm is then applied for additional comfort.
Included with your mouthpiece is a balm tube made from beeswax and almond oil to maintain the mouthpiece’s wax finish, a transport pouch, and a care guide.

Handmade in France.
Please feel free to reach out with any questions.