Because every woman's body is different, Crave designed the Duet to offer an unprecedented range of possibilities. Its unique, compact design allows every woman to explore and discover the most exciting combination of edges, surfaces and vibrations. The compact, water-proof form can be discretely tucked anywhere, at your fingertips when the moment strikes. It charges via USB, so you may charge it at virtually any computer, where it resembles a common thumb drive.
How to charge: When you plug the battery into a USB port to charge it, you must hit the center O button to begin charging. The unit will not charge unless the center O button is pushed to begin the charging cycle, which usually takes about 1.5-2 hours.