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If you're passionate about IT and electronics, like being up to date on technology and don't miss even the slightest details, buy PC Speakers SteelSeries ARENA 7 Black RGB at an unbeatable price.. Characteristics:. RGB. 2 Speakers. Connectivity:. Bluetooth. Bluetooth 4.2. Colour: Black. Channels: 2.1. Power supply: Wired. Voltage: 100 - 240 V. Recommended use: Laptop