The Buzz Extension
& Resistance Piece
The BERP is the brass player's essential practice tool — a resistance device that attaches to your instrument and lets you buzz your mouthpiece while fingering the horn. Plus a complete line of bio-based valve oils and slide lubricants that keep your instrument in peak condition.
Practice Smarter
The BERP (Buzz Extension and Resistance Piece) clips onto your instrument's leadpipe and creates adjustable resistance for mouthpiece buzzing practice. You can buzz while fingering your horn — building the connection between air, embouchure, and technique.
Available in the original BERP and the Classic BERP, each designed to help brass players at every level develop stronger, more efficient playing fundamentals.
Bio Oils & Lubricants
BERP's Bio line uses plant-based formulas for valve oil, rotor oil, trombone hand slide lubricant, and tuning slide grease. Effective, eco-friendly, and safe for all brass instruments.
From fast piston action to smooth rotary valves and slick trombone slides — the Bio line covers every lubrication need for the modern brass player.
Practice Innovation
The BERP lets you buzz while fingering your horn — building the air-embouchure-technique connection that makes better brass players.
Bio Formulas
Plant-based valve oils and slide lubricants that are effective, eco-friendly, and safe for all brass instruments.
Complete Care
Piston oil, rotor oil, hand slide lube, and tuning slide grease — every lubrication need covered in one product line.
Berp and Company
The BERP
The original Buzz Extension and Resistance Piece — clips onto your leadpipe and lets you practice mouthpiece buzzing while fingering your instrument. Adjustable resistance builds stronger embouchure and better air support. The practice tool that brass teachers swear by.
Berp Bio
Bio Oil for Piston Valves
Plant-based valve oil that delivers fast, smooth piston action without petroleum chemicals. BERP's Bio Oil is eco-friendly, effective, and safe for all piston-valve brass instruments — from student trumpets to professional tubas.
Berp and Company
The Classic BERP
The Classic BERP offers the same buzz-while-you-play practice concept in a streamlined design. Attach it to your leadpipe, insert your mouthpiece, and practice with real instrument resistance — developing the fundamentals that make great brass players.
