Logitech Wireless Headset H800. Connect to your PC, tablet and smartphone; enjoy rich digital stereo; and listen and chat longer with a six-hour rechargeable battery - with no wires to tie you down. Some functions of the headset may not be supported depending on the tablet, smartphone and/or application. Actual battery life will vary with use, settings and environmental conditions. Rechargeable batteries have a limited number of charge cycles.