192Khz 24Bit sampling rate: Support 192Khz 24Bit sampling rate on the optical and SPDIF signal,built-in interference immunity and no signal input squelch circuit [Audio Format: PCM/LPCM]Plug-and-play, easy to install and operate. Compatible with , HD DVD, , HD, plasma Blu-ray home theater, AV amplifiers, etc; Note: 5.1 channel signal is not compatible (such as AC3); Set the format steps: Setting--Sound--Audio Format-PCM/LPCM Widely compatible with 32~600 Ω headphones:Designed for game player and music fancier ,support all headphones within 32~600Ω Volume adjustment knob : Built-in volume adjustment circuit and control knob ,completely solve the problem of low volume when using high-impedance headphones used in products , with surging power and full thrust Bass adjustment knob: The 192KHz innovatively designed bass adjustment function,Can provide stunning stereo sound, heavy bass effect, create the perfect environment different from the sound field, gain the effect was very obvious, which makes you reveled in a world by bass The design of portable and fashion aluminum alloy shell and gold-plated interface improved overall immunity ,it makes the sound clear and pure .Widely compatibility ,it can be used for ,,Blu-way player,HD DVD,Home Theatre system, etc. Easy to install , plug and play This product is designed for professional audio signals,Can easily convert Coaxial or Toslink interface to analog audio interface and 3.5mm headphone jack. The professional audio amplifier chip and volume adjustment knob are designed to directly drive the headphones and adjust the output volume. The product also designed a bass adjustment knob, which can easily control the bass component to meet different customer needs. Support 32KHz,44.1KHz,48KHz,96KHz, 192Khz 24Bit sampling rate on the optical and SPDIF signal,built-in interference immunity and no signal input squelch circuit Built-in volume adjustment circuit and co