[Rechargeable Radio Sleep Timer] The powered by a 3.7V 850mah rechargeable Li-Ion battery or with a USB cable for AC power,both included.You can use it as a clock and alarm clock, and it has a countdown function of 10-90 minutes to fall asleep. Rechargeable Radio Sleep Timer]The 1192 is powered by a 3.7V rechargeable Li-Ion battery or with a USB cable for AC power,both included. You can use it as a clock and alarm clock,and it has a countdown function of 10-90 minutes to fall asleep. AM 522-1710KHZ, fm 87-108MHZ, sw:3.2-22MHZ can set dual clock and snooze functions also with good lcd display to , TF card and USB flash driver good sound with multi channel to satisfy your music and radio stations requirement! Color:Black Material:ABS Package Contents: 1 x radio 1 x USB charging cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.