2.4GHz BABY MONITOR PRODUCT NO.SWL0209B >>>PARAMETERS *RECEIVER WIRELESS RECEIVER -(2.5" INCHES LCD MONITOR ) + C-201 *Product Size ( L x W x H ):72 x 105 x 24 mm *Receiving Frequency : ISM 2,400 - 2,483 MHz *CH1=2,414G; CH2=2,432G; CH3=2,450G; CH4=2,468G *Power Supply: AC-DC ( DC + 5V 250mA-550mA ) *Music format: MP3, MP4/PC interface mode: USB 2.0 *Capacity of memory: Support the SD card(128/256MB/512MB/1 GB) *WL0209B Built-in Lithium Battery,power adapter *2.5 hours for normal play, and 2 hours for playing monitoring image *WL0321 Outdoor Range: 500M(Built-in Lithium Battery ,3 hours for normal) >>>PACKING *Inner Box: 5 sets *Outer Ctn: 20 sets *G.W.: 21.1 kgs *N.W.: 19.8 kgs *Meas: 51.5 x 38 x 36 cms *Ctn Cu.M: ( 0.053 cbm )