... .5 inch TFT LCD display screen - Inbuilt with 64MB memory block, MMC, SD card, U disc, mobile HD memory, reading ... , 5 h continuous play time.Function Description: Reception Frequency2.4GHz, 4 channel, manual switchChannel FrequencyCH1=2414MHz ; CH2=2432MHz ; CH3=2450MHz ; ... XP/2003Attached Parts:USB2.0 cable, USB OTG cable, AV connection cable, stereo earphone, recharger and user Model Number:KS639R1. ...