The WilsonPro 859926 10 dB Cellular Signal Attenuator, 50 Ohm (N Female Connectors) is a signal attenuator, rated at 10 dB used in a Wilson/weBoost cellular signal-booster RF distribution system, splitting, tapping, or conditioning the amplified signal as it's routed from the booster to multiple antennas or coverage zones. It's a system-design component, specified to the exact amplifier and antenna configuration it's installed into.