This compact DVD/CD player is CD/CD-R/CD-RW/HDCD/MP3/WMA format compatible It makes watching a movie, playing music and viewing pictures from your favorite CD fun, turning any room into a mini home theater It supports USB flash drive playing, maximum supporting up to 16G USB flash drive Includes a remote control, easy to operate for the elderly and teen The compact design, with the size of 135.5mm*135.5*27mm, space-saving when storage, easy to carry Built-in 1200mAh battery, providing long working time Specification: Product specification: 135.5mm*135.5*27mm Product net weight: 270g Battery: Built-in 1200mAh polymer battery Signal-to-noise ratio: ≥60db Frequency response: 20Hz-10kHz (±3dB) Disc format: CD/CD-R/CD-RW/HDCD/MP3/WMA format Supply voltage: DC 5V 1A Audio interface: two 3.5mm stereo audio plugs D/C conversion: 16Bit Sampling frequency: 44.1KHz In-ear ear impedance: 32 ohms In-ear headphone output power: 0.8V-20mW/32 ohm headphone USB disk playback function: maximum support 16G U disk Key operation: 8 touch keys + 1 lock key Memory function: time and volume power-off memory Anti-shock function: CD-60 seconds, MP3-120 seconds