Features: The sound machine helps you naturally block out distractions and create a perfect environment for sleep, relaxation, or concentration. The Sound Spa can help you fall asleep, but you can also use it to tune out distractions, or boost your focus while you study or work. The Sleep Therapy is lightweight, compact and portable for home and travel use. The machine for sleeping has an auto-off timer can be set for 15, 30 or 45 minutes. The product provides 6 digitally recorded relaxing sounds: White Noise, Ocean sound, Thunder storm, Rainforest animals sound, Rain falling, and Lullaby The therapy machine's sounds are designed to mimic the natural environment to provide the most relaxing experience possible. Specifications: Material: ABS Size: 120*120*45mm Color: White Power Supply: 3*A Battery / USB Rechargeable Package Size: 165×145×55mm Net Weight: 200g Gross Weight: 232g Package List: 1*White Noise Sound MachineWithout Battery