Cello is a remote-controlled vibrating egg, designed to deliver good vibrations to sensitive erogenous zones. Coated in feel-good silicone and shaped for targeted pleasure, ROMP Cello is waterproof, rechargeable and always ready for a good time. [[[How It Works]]] The simple one-button control on the remote lets you easily turn the toy on or off, and cycle through all 6 intensity levels and 4 vibration patterns. Apply water based lube and insert vaginally, begin with the lightest weight balls (30 grams) and increase to the 40 and 50 grams gradually. If using without the silicone retrieval strap please note that, although the balls can't get lost in the vagina, they may be hard to remove (squatting and bearing down may help).Cello can be used as a vibrating kegel ball, and can be used to strengthen the pelvic floor, however kegel exercises can exacerbate hypertonic (too tight) pelvic floor issues - if you are not sure, consult a pelvic floor physiotherapist. [[[Specifications]]] Material Silicone and ABS plastic Waterproof rating IPX7 Waterproof Charging method USB-A prong charger Charging and run time 120 minute charge = up to 60 minutes Length 7.2" (182mm) Circumference at widest 1.5" (39mm) VE warranty period 2 years Made in China [[[Care Instructions]]]Clean silicone products with unscented soap, or toy cleaner, rinse well and let air dry. Do not use with silicone-based lubes.