CR-711 Tour guide pocket audio receiver. Compact and lightweight pocket receiver for tour group audio and language translation audio systems. •LCD display-At-a-glance view of channel selection, battery status and function-setting information. •100 channels-100 preset UHF channels for selection. •Auto scan-Finds live channels automatically. •Rechargeable-Uses 2 AA NiMH batteries and has charging pins for drop-in recharging. •Volume control for headphone volume output. •Belt clip-Allows 360° rotation for optimal position for comfort. •Built-in charging circuit. •Unique rear-locking design battery compartment. (users can't easily remove your batteries) •13-15 hours operation (depending on battery capacity) •Compatible with hearing aids with T-Mode, and because the headphone output connector is a standard stereo 3.5mm jack plug you can connect any hearing assistance device that you would use with any radio, ipod or mp3 player etc. You choose the appropriate headset or earpiece and add to the order - these are sold separately.