Attention pls: This TV headphones Set includes a digital optical to analog adapter. 

The headphone batteires have been installed before the shipping.

When you get these you initially need to put them on the charger and let them charge for about seven hours. There is a green charging indicator light that goes off when they are fully charged. Thanks!

ARTISTE not only has a number of technology patents, but also master the world advanced headset design and production experience.

It is committed to provide users with real, shock of audio-visual feeling!

ADH300 is long-distance high fidelity music headsets with meticulous overall voice .

Its Voice is clear and at the same time also ensures good dynamic, able to adapt to a variety of types of music , and meet the demand of daily video use.

ADH300 is your household's good choice that you can enjoy the real sound.

Product Parameter:

Working Voltage:Transmitter/charger DC 5V 550mA

Receiver:2*1.2V AAA

Frequency Response:25Hz-20KHz

Carrier frequency :2.4GHz

Modulation Modes:GFSK

Degree of Distortion:<0.5%

SNR>70dB

Effective distance:30 meters

packing list:

Wireless headphone *1

transmitter*1

RCA-3.5MM *1

Rechargeable battery: one pair

3.5MM-6.3MMrotary union

Power Adapter*1

Specification*1

Warranty Card*1

Optical Adapter*1