Sleepytroll is the world's first rechargeable and sensor-controlled baby rocker. It easily attaches to the stroller or car seat, and with adapters, it can also rock the crib. The sensors detect sound and movement from the baby and automatically begin to rock the stroller/car seat/crib. We offer our patented Sleepytroll Baby Rocker, loved by thousands of babies and their parents, to retailers and distributors across the world. Please contact us at post@sleepytroll.com to take part in the success. We wish you all a wonderful day!