How does the suction adjustment work?

You change tightness by covering or uncovering the air opening with your finger while using the cup. Covering it increases suction; releasing it eases off.

Is it battery powered or vibrating?

No. It is a manual cup with no motor, so there is nothing to charge or replace.

Wash the inner channel with warm water and mild soap after use, then let it dry fully before storing. The textured channel holds moisture, so drying matters.

Yes. It is a reusable cup, not a single-use item, and it can be used again after cleaning.

Does it come with lubricant?

The product information does not list lubricant in the box. Use a water-based lubricant with the textured channel.

It suits men who want a manual stroker with adjustable suction and a firm grip. Buyers wanting vibration or app features should look at powered cups instead.