Features: Retro wooden Speaker design 3.5mm audio plug is able to connect with most MP3, MP4, Notebook and other personal electronic products as source component It can read SDHC, SD, MMC and USB flash drive directly, support MP3/WMA play Built-in rechargeable Lithium ion battery Display show 24 hour format tim Support Alarm function Support FM radio function Sony Ericsson and 2.5mm audio connector for mobile audio in Dimension: 133 x 98 x 73mm (approx.) Weight: 393g Specifications: Output: RMS 3W+3W Frequency Response: 150~18KHz SNR: ≥80dB Package Contents: USB Retro Wooden Speaker (MD-E30) Remote Controller USB Cable Audio Cable 2 Audio Connectors User's Manual