"The Scientist"

At 90 grams and 10.5 cm long, "The Scientist" is the smallest air-pulse toy Womanizer makes, and the one designed to leave the house. A travel lock switches the buttons off so nothing wakes up in your bag.

If you share a house, or you travel for work, that lock is the point. Eight intensity levels is a narrower range than the bigger models, which is the honest trade for the size. Womanizer describes Pleasure Air as changes in air pressure that pulse and massage without touching the clitoris, so the sensation stays right on the surface.

Spread the labia gently, rest the opening of the head over the clitoris and start on the lowest level. It's IPX7 waterproof, so the bath or shower is fine. An hour on the magnetic charging pins gives about two hours of use. Womanizer packs it in a plant-fibre box that goes into paper recycling, and has a five year warranty on it.