ESCB241 details: 1) 2.4 GHz output channel 2) Add on / off switch. The green LED is off when switching off the unit to save the power 3) 4 mode of display: sound only; picture only; sound trigger picture; sound and picture 4) 1.8 LCD display 5) Add a cap to the video out jack to avoid plugging the adaptor into the video out jack Packing: 1pc/color box 6pcs/ctn Carton dimensions: 36 x 31 x 47cm G.W.: 12kg Conveyance: Qty/20\'\' FCL: 3200pcs