good.
personally I think we should infra use infrared , because uh otherwise our device cannot uh communicate with uh almost every T_V_ set. So I think that uh should be clear.
Okay.
Uh another important point is uh we really should use uh energy uh sparse , friendly components. Uh there are specially uh designed um energy-friendly components which consume uh far less power than uh conventional components. And um if we want to use uh a rechargeable design or uh a energy-save design , we should really implement them.  Um for cost-effectiveness , we should really use a very low-cost uh circuit board , um because most of the production cost are are in this uh part of the equipment.