Munchkin Lulla-Vibe Vibrating Mattress Pad: * Easily slips under crib mattress * Helps baby fall asleep * 2 vibration speeds * Vibration gradually shuts off to help baby stay asleep * 30-minute timer * Soft neoprene cover * Requires 4 AA batteries (included) Questions about product recalls? Items that are a part of a recall are removed from the Walmart.com site, and are no longer available for purchase. These items include Walmart.com items only, not those of Marketplace sellers. Customers who have purchased a recalled item will be notified by email or by letter sent to the address given at the time of purchase. For complete recall information, go to Walmart Recalls.