Revol Effects Revol Effects Effector Tremolo KNOCK TREMOLO ETR-01

We offer a wide variety of products, and the following precautions apply to some of them. Please note that they are listed for all products. 【Voltage Compatibility】Designed for Japanese voltage (90-110V). Using with a different voltage may cause malfunction. 【Plug Type】Japanese plugs (A or B type). Use a conversion adapter if needed. 【Transformers & Adapters】Transformers adjust voltage; adapters only change plug shape. Using an adapter without a transformer may damage the product. 【Liability】We are not responsible for damages caused by improper use, such as using the product without a transformer. Modulation effect that periodically controls volume increase/decrease From smooth tremolo sounds to fast techno-like sound waves, use the "SPEED" and "DEPTH" knobs to create Weight: 150g Size: 93.5mm (D) × 42mm (W) × 52mm (H) Due to design changes by the manufacturer, the external design and color may change without prior notice.