The Chandra is slightly bigger than it's sister the Iris, but is still very discrete. With a single powerful vibrating speed of 110 Hz the Chandra gives a more intense vibration. It comes with 3 different finger bands and is fully rechargeable. The Chandra is slightly bigger than it's sister the Iris, but is still very discrete. With a single powerful vibrating speed of 110 Hz the Chandra gives a more intense vibration. It comes with 3 different finger bands and is fully rechargeable.