Amplifiers for wireless communications; Antennas; Audio speakers; Coaxial cables; Data processing equipment, namely, couplers; Distribution amplifiers for audio and video signals; Electric connectors; Electrical cables; Electrical plugs and sockets; Lightning conductors; Masts for wireless aerials; Optical cables; Power adapters; Power supplies; Transmitters of electronic signals; USB cables; Walkie-talkies; Amplifiers