Brand new, unused item. ※ This is the price for one SHUF12 booster. DX Antenna 2K/4K/8K compatible BL certified product CS/BS-IF/UHF/FM band booster for community use, 40dB type Model number: SHUF12 This booster amplifies CS/BS-IF, UHF, and FM/V-Low signals, supporting 4K8K satellite broadcasting (3224MHz). It is used to strengthen radio waves when the TV signal is weak or when it needs to be sent to multiple TVs. It also supports the FM extended band. This product has a high-shielding structure, making it less susceptible to and less likely to be affected by radio waves from Wi-Fi and mobile phones. Lightning resistance has been improved. Input/output terminals and power supply terminal JEC: ±25KV (1.2/50μs). Amplification band: FM/V-Low 30dB, UHF 40dB, BS/CS 35/45dB. BL Excellent Housing Component Certified Product. [SH・UF-1]. For indoor use.