Electro urethral sound (spiral grooves·ring handle)

A stainless steel sound for insertion into the urethra. Its thickness is not uniform; the shaft rises and falls in waves, so the changes in thickness arrive in sequence as it goes in and comes out. At the top there is a cylindrical section and a large ring you can hook over a finger. The supplier posted no description, so the notes below cover only what can be confirmed from photographs of the product itself.

The ridged shape and the ring stop

The whole sound is a single seamless piece of metal, so there are no gaps or seams and it is easy to wash. The ring at the top gives you something to hold with a finger, and it also keeps the sound from disappearing inside entirely. That said, the presence of the ring does not mean it is safe to insert all the way to that point.

The electrical side has to be bought separately

Metal conducts current well, but no lead is shown in the photographs. To pass current you need to supply the pulse unit and the lead yourself. Current only flows when two contacts of opposite polarity touch the body, so this sound alone does not close a circuit.

What to know before you use it

The urethra is the most delicate place among everything this shop deals with. Never use it without disinfection and water-based lubricant, and forcing it in tears the mucous membrane on the spot. Adding electricity makes muscles twitch involuntarily and moves the sound with them, so settle your position and depth before raising the intensity. If you are unsure, you are better off learning with attachments for places other than the urethra first.