Portable: on-the-go design allows nap time to happen any time

Sound on: 5 soothing sounds including shushing + heartbeat

Glow on: 3 nightlight glow levels for nighttime feeds

Adjustable strap: attach-anywhere strap hooks on strollers, car seats, cribs + more

Convenient: adjustable volume, overnight battery life + auto shut-off option

Contents: 1 portable sound machine w/ adjustable silicone strap + usb charging cable