Our Certified Refurbished cell phone signal boosters shown below are tested and certified to work like new by weBoost/ Wilson Electronics. Enjoy many of the same benefits as purchasing our new cell phone signal booster kits such as free shipping and get a generous one year manufacturer's warranty on all our used or refurbished signal booster kits. All refurbished amplifier kits are complete kits with all parts included in like-new condition. These're open-box and/ or clearance items but they work as new because they are tested to work perfectly so you can enjoy the same great performance at a deep discount. Rest assured, all used or refurb. signal booster kits are backed by our 60 Days Money Back Guarantee plus One Year Manufacturer's warranty.