※ First come, first served on other platforms!! Works perfectly, no issues at all. In excellent condition with no noticeable scratches. The careful construction using a tag board, just like a vintage amp, is also very good! ^_^b Product Description: A treble booster developed based on the Arbiter Rangemaster!! It avoids the unpleasant stuffiness and overly harsh, ear-piercing sound often found in vintage treble boosters. Instead, it offers a pleasant roundness, making it sound more like a full-range booster than a treble booster. This is highly recommended for those who find vintage treble boosters limiting, not versatile enough, or prefer a sound that isn't so high-pitched, or who struggle with adjustments, etc.! This booster beautifully enhances the desirable qualities of Stratocasters and Les Pauls, providing deep harmonics and beautiful sustain to the distortion. The three-mode toggle switch allows for versatile sound shaping: TREBLE mode is for Les Pauls, and BASS mode crisply and vividly expresses the low frequencies of a Stratocaster. The matching and integration with tube amps is amazing, as if the amp's knobs have been brought outside. You'll be amazed by the excellent usability of this wonderful treble booster! ^_^b For product information and sound samples, please copy and paste the following link: Boosker http://sound-wave.sblo.jp/s/article/69939915.html