Sennheiser RS240 Wireless Headphone Set (2 Pairs, 1 Transmitter) (Discontinued by Manufacturer) 2 sets of Sennheiser RS-40 wireless headphones, one 925 MHz transmitter Lets 2 people enjoy the same program in complete privacy, with complete freedom of movement Comfortable, lightweight design RF filtering eliminates interference Includes NiMH rechargeable batteries and AC adapter cables