Electric Rocking: 3-speed rocking like a mother's embrace soothes baby to sleep. Say goodbye to manual rocking and free up your hands completely. VaVaSoo understands the challenges of parenting and is committed to making it easier 8 Soothing Music: 5 melodies and 3 white noise options help calm infant's restlessness. Bedside sleeper features a premium beech wood frame, perfectly complementing your home decor Dual Power Mode: Supports both adapter and battery power. Activate soothing function anytime in your yard or at grandparents' house. Batteries need to be purchased separately Quick Assembly: Easy, tool-free installation in just 3 minutes.