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The Plug Wireless is Koss's Bluetooth in-ear headphone, a wireless take on its long-running Plug line. It uses Bluetooth 4.2, a closed in-ear design, memory foam cushions for isolation, an in-line mic and remote, and a rechargeable battery rated at 6+ hours. It suits gym users and commuters who want a secure, isolating fit and simple controls without paying for active noise cancellation. Against true-wireless rivals it keeps a cable between the earpieces, which some owners find short and delicate, and its battery life is modest. Buyers generally like the sound, bass and comfort for the money.
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Owners rate it well overall, praising sound quality, bass and comfort for the price. Complaints center on the short, delicate connecting cable and limited battery life.
The Plug Wireless are Bluetooth in-ear headphones with a rechargeable battery that runs for 6+ hours. They connect over Bluetooth v4.2 and have a frequency response of 10 Hz to 20 kHz.
Memory foam cushions give a comfortable fit and isolate noise. The headphones are sweat resistant, and a cable management clip helps keep the cable in place.
An in-line microphone and remote handle calls and music. The remote controls play/pause, start/stop, volume, and answering or ending calls.




