BO is a gentleman's ring whose place in history is assured - the first stylish and rechargeable male pleasure object of his kind, BO has already gone where others can only follow. His unique design promises comfort to men of all sizes, while stimulation is delivered through an energetic and vigorous vibe. Still more flexibility is offered depending on how he is worn, with the wearer becoming noticeably more endowed, while prolonging the sensations for both partners. BO is the perfect gift for those who wish to make a great experience even better, and as you would expect, this potential for pleasure only gets stronger with time. Materials: ABS / body safe TPE Finish: matte Size: 56 x 45 x 20 mm Weight: 25 grams Diameter: 29 mm Battery: Li-lon 70 mAh 3.7 V Charging: 2 h at 5.0v 500 mA User time: up to 2 hours Standby: up to 90 days Frequency: 150 Hz Max noise level: < 50db Interface: on - off As with all pleasure objects by LELO, BO is designed to offer total peace of mind in whatever situations arise. Made with FDA-approved and phthalate-free TPE/ ABS, he delivers up to 2 hours of near-silent vibrations after just a 2-hour charge. BO is fully lockable and comes with a combined charger and storage unit to ensure discreet transportation at all times, arriving in an elegant gift box, complete with charger, user manual and a full 1-year LELO warranty.