Widely Compatible - Designed to be compatible with Dyson vacuum cleaners, widely compatible with Dyson V15, V10, V11, V8, V7, V6 Absolute/Animal/Motorhead vacuum cleaners. (Note: Not compatible with Dyson V11 Outsize, V11 Outsize Origin and DC Series models). Free your fingers - Control the lock and unlock power button, keep it on and off with a slide switch. Solve the problem of constantly pressing the power button when using a cordless vacuum cleaner. One-Step Control - The new unique technology design allows you to fix the power button by adjusting the gear shift clip. Convenient and easy to use. You can check the vacuum cleaner status by sliding the on/off switch to keep the vacuum cleaner on/off, while your finger has enough space to easily grip the vacuum cleaner trigger.Sleek Design - Small and lightweight, it will not bring extra burden to the vacuum cleaner, and the high-quality durable plastic makes it more stable to use with your precious cordless vacuum cleaner.