These speakers can be used indoors as well. Installed at our previous house under eaves of house out of weather very little use. Information below from web site http://www.jamo.com . complete with mounting brackets as shown

2-way bassreflex indoor/outdoor speaker Bass ports for deep bass sound Easy mounting with flexible bracket Safe in temperature range -22  158F/-30  70C

Design revamped mid-sized indoor/outdoor model sports a 5.25-inch polypropylene driver, resulting in a smaller overall package. The design is elegant, without being attention grabbing, while the sound quality is truly excellent.

Technology The middle unit of our 2-way bassreflex indoor/outdoor speakers is fitted with a powerful 5.25-inch woofer. It delivers strong, accurate bass reproduction. A 1-inch dome tweeter reproduces high frequencies with clarity and accuracy.