Beyerdynamic Synexis RP 8, UHF Tour-Guide-receiver, 18 frequenzies switchable (863/865 MHz), OLED-display, on-/off-switch, volume-leveler, headphone jack (3,5 mm) for headphones and deaf-aid-instruments, incl. integrated antenna, lanyard, beltclip and two change- and recharchable AA 1,2V/2050 mAh NiMH-batteries.