Solution: ROCKCHIP 2601stainless steel crust
AudioMP1/MP2/MP3/WMA/W***
USB 2.0 high speed
FM , h***e auto and manual preset system,it can store up to 40 channels
Built-in rechargable 280MAH Lithium battery, plays up to 8 hours
Firmware upgradable
Dimension58x33x23
Weight:23g