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Logitech G533 Headphones doesnt work without USB cable - iFixit Repair Guide
Logitech G533 wireless gaming headset, 7.1 surround sound, DTS headphone: X 3D, 40mm Pro-G driver, 2.4 GHz connection via USB receiver, noise-canceling microphone, 15-hour battery life, PC / Mac: Amazon.de: PC &