A couple of these may also work, with some potential slowdown on the wireless.
They just pick up the wireless and boost it.
EDIT: You need to place them somewhere which already gets a decent wifi signal. Usually half way between router and the dead spot.
Example is (imagine a flat one floor house as below). As we change rooms we go furhter from the router.
living room (router located) - kitchen (good signal) - bedroom (good signal) - study (weak signal) - garden (no signal).
living room (router located) - kitchen (good signal) - bedroom (good signal) BOOSTER HERE
- study (good signal via booster) - garden (good signal via booster)
Edited by ukhardy07 (Sun 19-Jun-16 13:59:08)