recommended battery operated, inconspicuous wireless ir extender

i'm looking to put some noisy av equipment in an another room, basically on the other side of the wall. signal and distance-wise not very demanding, so looking for a clean, battery (conventional, not proprietary/charged) operated setup for general use. will be used with a topfield pvr but may be expanded for others. looking for something small/inconspicious reliable over a max 10-15 metre range, ie i don't want or need the usually recommended big pyramid boxes with the long antenna to send a signal 30-50m. links and/or specific model & brand names appreciated. doubt much of an issue for this purchase, but just in case, budget should be a generous 50. thanks!