Please read this before purchasing. About the Projector: Built-in stereo speakers, keystone correction USB charging (USB cable not included) 1080p portable speaker Box and instruction manual are not included. Also, we do not accept inquiries regarding the projector's specifications, so please purchase only if you understand this. About the Projector Screen: Size: 100 inches (225cm x 130cm) Strings for hanging the screen are not included.