EarTech TV Audio Digital Wireless TV Listening System with stetho-style Headset Best Signal-to-Noise (SNR) ratio on the market, which means the least amount of white noise, hissing, or static. What you hear is crystal clear, CD quality sound Sound quality remains strong and clear up to 100 feet even through walls The earpieces are available in small and large ensuring a comfortable fit Compatible with all kinds of TVs, even older models. Connection cables and components are included in the system Balance and volume controls conveniently located on receiver.