Xtreme 33570 Circumaural Head-band Black headphone

Wireless Stereo Headphones 3.5mm, FM, Black Compatibility with all devices that provide the possibility of a 3.5 mm audio output, which connect via cable with the transmitter unit of this product. The transmitter can be connected through the 3.5 mm cable to any source code that includes this type of audio output such as: MP3, MP4 players, smartphones, tablets. Via the REA cable you can connect the transmitter to a source with REA output (such as a TV or a DVD). The headset can also be used without batteries, alone with the supplied cable with both connectors 3.5mm; in this case function as a monitor that is, as driven by the headphone device to which it has been linked, but without volume control. The headset, with batteries inside, without any cable connection can be used to listen the radio. Modulation: FM 87-I08 Mhz - Maximum distance use: I0 meters. The transmitter operates on two AAA batteries (not included) The headphone runs on two AAA batteries (not included).