The acer h7550bdz projector display large image and delivers flicker free 3d imaging with 144hz speed rate and 3000 lumens high brightness with hidden wireless mhl adapter and bluetooth audio connection h7550bdz works as wireless projector to have more neat appearance and more flexible placement while delivering big screen with excellent resolution and audio paired with an acer wirelesshd av kit included you can wirelessly project full hd 1080p without compression even 3d cont