ELEGIANT 5in1 Wireless Headphone Earphone FM MIC for PC TV DVD Audio Mobile This item will never dissatisfy you: 5-in-1 Multifunctions (Wireless Earphone + Wireless Net Chat Tool + FM Radio + Wired Earphone + Wireless Monitor), high sensitivity, interference resistance, strong signal, outstanding performance, effective range over 8m, and reception beyond obstacle of wall. Power Supply: 2 * AAA batteries or 4.5 DC (Batteries and power cable are not included. ) Wireless Earphone: Wireless reception from any electrical device with audio output such as full-channel TV sound, PC, game player, DVD player, VCD player, audio device, MP3 player, and CD player. Full-channel TV sound: What will you do if there is your favorite TV program but you worry about disturbing others. Use of the wireless earphone enables you to watch wonderful TV program with mute function. Package include 1 x Wireless Headphone 1 x FM Emitter/Transmitter (stand) 1 x Audio Cable 1 x Y Adaptor Cable 1 x User Manual