

Do experiment- Make a voicepipe to transmit sound
1. Non-toxic plastic and metal materials
2. A speaking tube or voicepipe is a device based on two cones connected by an air pipe through which speech can be transmitted over an extended distance.
3. Sound is a vibration that propagates as a typical audible mechanical wave of pressure and displacement, through a transmission medium such as air or water.
4. Sound is a kind of energy, the greater the energy, the louder the sound; sound spreads around from source energy decreases and sound falls when heard by us.
Description | Make a voicepipe to transmit sound |
Item No. | stem kits, SC-023 |
Components | plastic cups, metal spring and film |
Size | assembled size is 9.5*9.5*31cm |
Packing | zip lock bag |
MOQ | 50kits |
Produce Time | for MOQ, around 3days |
Sample Time | one day |



