hunghao teng 5 very happy to get this one especially when the price droped around 10000 :).450lm is good for indoor with open window in the daytime. no complain for it in this price.short distance can get big size of screen is supper, manual focus can get the sharp pixes on any wall.get on for yourself before been sold out~audio is basic, not super but wont give you a headache from the good side. can get any Bluetooth speaker to replace them no problem.. or get a Homepod, you wont regret to have it.