Pillow Speaker.
    Machine size:38 x 13 x 2 CM
    Ultra-slim  ,Put on your Pillow.
    The soothing nature sound relax you and help sleep.
    The Smart Sleep Button,Volume decreases gradually automatically within one hour
    With Built in memory, Aux in, Earphone out, get music easily.
    * Built in 300mah polymer battery.       * Power supply: 5V DC (USB Interface)
    * Distortion: ≤1% (2W 1KHZ);            * Speaker Unit: 1.5W

    * Built in 1GB Memory to save songs you like,