(2x Pair) Samsung Rechargeable 3D Active Glasses, Black Important: batteries are not charged and need to complete a full charge cycle before first use. Plug the glasses into a computer USB as it will have the correct lower voltage USB needed for the glasses You must reset the glasses prior to using them to ensure proper pairing. the reset button is located next to the recharge port, a light will turn indicating a successful reset was completed Lightweight and comfortable design with flexible arms. Long Battery Life - Bluetooth technology syncs glasses to 3D television Compatible with all D, E, EH, ES, F, and FH series Samsung 3D TVs, As well as Samsung 3D TV's 2011 and Newer. Can be recharged with included USB cable, Works with Samsung wireless charging hub (sold separately) Box includes: 2x Samsung Active Glasses, 2x Micro-USB Charging Cables, 2x Cleaning Cloths. Please Note: Must follow initial use instruction for glasses to turn on.