Features: 1.4 satellite inputs selected by DiSEqC commands. 2.User switching commands:DiSEqC A B C D,DiSEqC 1 2 3 4 3.4103A: Metal housing + Transparent water-proof plastic cover + LED display indicator 4.4103B: Metal housing + Blue water-proof plastic cover 5.Luxury and nobility in appearance Specifications: Item Model : EMC4103B Frequency range: 900-2300MHz Input: 4Sat Output: 1 User loss SAT(user): 2.5dB Isolation SAT/SAT: 35dB DC Current consumption: 10mA LNB power supply max: 1000mA Working Temperature: -40 80°C Dimension: 110X108X23mm