VIND Voice Pipe - Singing and Speaking Tool - For perfect Warmup, Massage and Rehab of your voice - Glass design - Alto SO EASY TO USE: The only thing you need is one of our Voice Pipes + one smaller bowl filled with tepid water. FAST AND EFFECTIVE: Just five minutes of using our Voice Pipe will make you feel the wonderful change in your throat and vocal cords. 100% EFFECT GUARANTEE: The bubbles in the water creates a very smooth and gentle pressure that massages your throat and vocal cords during the pipe singing. FOR WARM UP AND CALM DOWN: The technique is perfect for warm ups, to make your voice much more stable and its absolutely amazing to use for rehabilitating the vocal cords after a long day of working. OTHER INTERESTING FACTS: It's very easy to bring with you and to use in public when you have to. You will feel the change within just a few minutes of pipe singing. By controlling the bubbles you also learn how to increase more compression and strengh in your voice.