5 Core® presents HD-198 Headphones with Transmitter giving convenient four-mode operation to its users. Following are the features of HD-1: Features: *Comes with Transmitter for effortless reception while connecting with TV, Laptop Both Headphones &. *Transmitting unit are made of PP Plastic and works on AAA-sized batteries. (batteries not included) *Inbuilt FM mode in the Headphones with Reset function and on/Off feature An Aux Cable is included in the accessories for connecting the Headphone directly with Mobile Four-mode operation of the Headphones *Wireless Headphones Wireless reception from any electronics device such as TV, Laptop, PC, DVD player, MP3 player, and CD player. *Wireless NETCHAT Have an audio chat with the Headphones easily, just by placing the receiver near them and Headphones with you within 10m of receiver unit. FM mode in the Headphones USP: Two-way power source Receiver Unit Adaptor (DC 4.5 Volts) and 1.5V AAA-sized Dry Cell Battery. Option to attach a Microphone with Receiver while having Wireless Net Chat Transmitting Unit comes with attached 1 AUX & 1 RCA jack Headphones capped in comfortable ear pads.